from top to bottom, then you won’t have a problem. The sulfenic acids, in turn, spontaneously rearrange to form syn-propanethial-S-oxide, the chemical that triggers the tears. Onions make us teary because a reaction in the onion releases a chemical called lachrymatory factor, or LF, that irritates our eyes. But take a knife to them and, oh my, let the floodgates open! It happens that the eye-watering syn-propanethial-S-oxide is the product not just of a single onion enzyme, but of a complicated dance between three different enzymes in the onion. Let’s start with what makes onions such tear-jerkers. When you cut the onion this oil sprays into your eyes, irritating the hell out of them - tears result. The stings and pains in the eye are caused by something in the The onion peeling hack has gone viral, leaving the internet a better place in its wake. This worked for me and now I always cut onions this way, cutting each one in half lengthwise and then slicing down from top to bottom. Of all the kitchen inconveniences the cook has to live with, the one that generates the highest number of defensive strategies is no doubt the peeling and chopping of onions, and the associated teargas effect.. Turn a fan on, blowing across the onions and away from you. The oil that gives the onion its flavor is actually intended to keep root eating rodents and the like from eating the bulb. This will help to burn off the fumes that … what is the rol e of democracy in the worldhey co'me joi'nhvegoodtime/meetg'irls /avz-tpfj-qup​, S E X ❤️C O M E F A S T⬆️​Show your I show my!​, mere answers ko jo bhi brainlist karenga mai use folw karungi​, In Hibiscus, aestivation of calyx isa. However, … Because anyone who has ever struggled with the tedious task of peeling the thin, fragile skin off an onion, making sure to get that one sliver that always insists on sticking to the side, knows how irritating it can be. Unless you've managed to avoid cooking entirely, you've probably experienced the burning and tearing from vapors that cutting up an onion produces. Beneath each skin of mine Lies another skin: I am pure onion--pure union Of outside and in, surface and secret core. Cut an onion in half vertically. Peel and cut the onion under a vent. Onion For Diabetic Patient. From peeling away my body, layer by layer, The tears clouding your eyes as the table fills With husks, cut flesh, all the debris of pursuit. State of the onion: Peeling away data behind agri exports brings tears to the eyes. peeling of onions causes tears as onions release: Sulphonic Acid. This skin damage converts the sulfoxides into a super-annoying chemical. Results: The three machine-based methods all share one fatal flaw: you have to peel and halve the onion before using them, which puts you at risk for a few tears right away. The difficulty of slicing a microwaved onion meant that I caused more damage to the cell walls of the onion. Be it any exam, we have allthat you need to know to crack them. When an onion is cut, certain (lachrymator) compounds are released causing the nerves around the eyes (lacrimal glands) to become irritated.These compounds consist of methionine and cystine that are part of the amino acid family. A garlic or onion-like smell coming from your breasts, underarms or groin; Social anxiety due to body odor; Doctors can diagnose bromhidrosis by swabbing and testing the bacteria on your skin. When the onion is intact, amino acid sulfoxides and allinases are separately stored in the onion cells. Peeling, cutting or crushing an onion’s tissue releases enzymes called allinases, which convert these molecules to sulfenic acids. When you chop onions, they release a chemical compound that irritates your eyes and triggers your tear glands. By cooling the onion, you will slow the enzyme/sulfoxides reaction rate, minimizing the syn-propanethial-S-oxide production. Onions are part of a group of plants that contain amino acid sulfoxides. The fan in the vent will pull the tear-causing chemicals away from your eyes and safely outside. 1. Alternatively, put the onion in ice-water for a few minutes before cutting. The cause of tears and itching is the chemicals produced by onion (Allium cepa).Lets go into some details. Read below for more information on causes and how to treat peeling … Look at you, … Simply peeling an onion won’t make your eyes water. Cutting an onion bursts its cells, producing a chemical process which releases the contents of those cells into the immediate atmosphere, causing you to tear up as you slice and dice. Harcourt. The tears that follow are released not because the pain is too much to handle, but because your body is attempting to dilute or wash away this onion-derived irritant. This will reduce the amount of tears. Chopping onions causes tears because it releases syn-Propanethial S-oxide, an irritant that affects the lacrimal gland. Your eyes react to the gas that is formed, and your eyes try to flush it out with tears," Rosa explained in a school news release. The verdict: Total failure. [7] Dry eye, a condition in which the eyes don’t produce the tears necessary for keeping the cornea nourished, can occur with hormonal changes such as menopause or as a symptom of aging. This form of sulfuric acid irritates the nerves around the eyes making them tear. They are versatile and can be baked, boiled, braised, grilled, fried, roasted, sauteed, or … Cutting and Peeling of onion brings Tears to the eyes because of presence of Sulphur in the cell. Why does cutting onions make our eyes tear? Exfoliative dermatitis is peeling of the skin over large areas of the body. If your kitchen has an oven vent, simply turn it on, move your cutting board over an unlit burner, and start peeling the onion here. Because sulfenic acid is inherently unstable, many different chemical reactions occur in the onion within an instant. The humble onion, without which Indian kitchen and its cuisine is incomplete, is inducing tears across the country on account of shortage (due to inclement weather) and consequent high prices. Really, the best method is just to engineer tear-free onions from the start. When we hold them or even peel them, everything seems just fine. I like eating onion in foods a lot but I just always had difficulty in enduring those eye stings and keeping the tears from rolling. Keep in mind that not all onions are created equal. Refrigerate the onion at least 30 minutes before cutting. Having said that, dealing with them can often be a hassle. Peeling the onion price crisis . Onion also contains enzymes known as Allinases. (Protein is made up of several of these amino acids grouped together.). Finally, this onion chemical carnival results in sulfenic acid rearranging itself into syn-propanethial S-oxide. Excessive amounts of Corynebacterium, Propionibacterium, Staphylococcus and Micrococcus usually indicate chronic … The onion (Allium cepa L., from Latin cepa "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium.Its close relatives include the garlic, scallion, shallot, leek, chive, and Chinese onion.. There are a few ways to curb the chemical process which causes you to cry when cutting an onion, including: Cook the onion. Onions, coming from the family Liliaceae (also containing garlic, chives, scallions and leeks) store compounds known as amino acid sulfoxides, and the one we are talking about here is S-1-propenyl-L-cysteine sulfoxide (abbreviated as PRENCSO), also … When this occurs, "enzyme" works to alter the amino acids into lachrymator compounds. Peel and cut the onion under a vent. Chromium helps in controlling blood sugar levels in the body and releases glucose by slowing the muscles and body cells. We provide you with hand picked material and question banks, time-proven exam strategies, exam analyses and simulated tests to give you a hands-on real time test experience. The onion gives out its juice when you cut across the fibres. 25 points Cutting and peeling of onion brings tears to the eyes because of the presence of _____ ? Refrigerate the onion at least 30 minutes before cutting. A) Amino acid B) Sul… 1. Grab a knife and slice into an onion, and you’ll quickly feel a stinging sensation and tears starting to flow. These blisters may ooze and scab, causing the appearance of peeling skin. Cooking inactivates the enzyme, so while the smell of cooked onion may be … You can reduce or eliminate the spraying oil by putting the onion in the freezer for a little while before cutting. Yep. Onion, ginger and garlic - these three ingredients are some of the very staples of Indian cooking. Sulfenic acid is a restless chemical that does not quietly concede to its new form. More chemicals. It may also cause fluid-filled blisters to form. Poor deluded human: you seek my heart. Through close textual analysis of articles, this thesis reveals the precise function of The Onion in terms Sulfur is quite a noxious (bad smelling)element. To enjoy the taste of … What Causes Onion Tears? Just like how pepper can make you sneeze, onions in fiction can produce oceans of tears, giving the appearance that you have experienced a horrendous tragedy, instead of the mild eye irritation that occurs in boring Real Life.Oftentimes, onions will make the characters sob uncontrollably, rather than just leak a few tears from the eyes. Microwave the onion for 45 seconds Kasandra Brabaw Apparently, hitting a whole onion with a few electromagnetic rays prior to cutting breaks down some of the compound that causes tears. Onions are commonly chopped and used as an ingredient in various hearty warm dishes, and may also be used as a main ingredient in their own right, for example in French onion soup, creamed onions, and onion chutney. Peeling, cutting, dicing or crushing an onion means you are cutting the tissues. Onions contain amino acids called sulfoxides, and when you cut into them, you damage the skin. After peeling, I cut the onion in half and rinse it under cold water to wash away some of the juice. The reason why it makes you cry is explained in detail here, and if you like to read about enzymes and syn-propanethial-S-oxide, as do I, it is worth a read. Finally, this onion chemical carnival results in sulfenic acid rearranging itself into syn-propanethial S-oxide. Onions, coming from the family Liliaceae (also containing garlic, chives, scallions and leeks) store compounds known as amino acid sulfoxides, and the one we are talking about here is S-1-propenyl-L … By cooling the onion, you will slow the enzyme/sulfoxides reaction rate, minimizing the syn-propanethial-S-oxide production. Chemistry. So, what gives? The steam will trap the sulfur gas before it hits your eyes. Higher fan settings tend to reduce tears the most. Peeling, cutting or crushing an onion's tissue releases enzymes called allinases, which convert these molecules to sulfenic acids. These compounds consist of methionine and cystine that are part of … ?I am getting Followers by Abusing people !!! The compounds released are highly volatile, meaning they quickly enter the air in their vicinity. Suggest other answer Login to Discuss/suggest the answer... lattu singh 290 Join now. The term "exfoliative" refers to the exfoliation, or shedding, of the skin. If your kitchen has an oven vent, simply turn it on, move your cutting board over an unlit burner, and start peeling the onion here. Cutting and peeling of onion bring tears to the eyes because of the presence of ??? Hunt all you want. [amino acid] [Sulfur] [Carbon] [FAT] 7 people answered this MCQ question Sulfur is the answer among amino acid,Sulfur,Carbon,FAT for the mcq Cutting and peeling of onion brings tears to the eyes because of the presence of _____ What Causes Onion Tears? Few people enjoy peeling onions, especially not when the tears start to fall. Translated by Michael Henry Heim. Interesting question! Stop Crying . Peeling the Onion By Günter Grass. It irritates the lachrymal glands, causing them to excrete tears. Turn a fan on, blowing across the onions and away from you. You can specify conditions of storing and accessing cookies in your browser. Microwave the onion for 45 seconds Kasandra Brabaw Apparently, hitting a whole onion with a few electromagnetic rays prior to cutting breaks down some of the compound that causes tears. The fan in the vent will pull the tear-causing chemicals away from your eyes and safely outside. !But Thanks for following me !! 1) Sulphur in the cell, 2) Carbon in the cell, 3) Fat in the cell, 4) Aminoacid in the cell, 5) NULL Sulfenic acid is a restless chemical that does not quietly concede to its new form. More tears for me. To get around this, try one of the following ways to cut and peel any sized onion in seconds! The (potential) reduction in tears hardly seems worth it. When an onion is sliced or diced, the onion's cells release these compounds into the air. The cause of tears and itching is the chemicals produced by onion (Allium cepa).Lets go into some details. Peeling onions often causes involuntary tears to crop up in our eyes. I have know about this delicious and nutritional onionegg recipe for quite a while now but it was always a struggle to cut all the onions needed. Your eyes produce tears because … Click here 👆 to get an answer to your question ️ Cutting and peeling of onion brings tears to the eyes because of the presence of _____ ? When this occurs, "enzyme" works to alter the amino acids into lachrymator compounds. Chewing gum while cutting onions prevents tears by forcing you to breathe through your mouth.Chewing gum before, during or after cutting onions promotes production of saliva. 3 65 Super Easy Finger Foods to Make for Any Party From chips and dip to one-bite apps, finger foods are the perfect way to kick off a party. When you cut through an onion’s cell walls, syn-Propanethial-S-oxide (or S-oxide for short) … Higher fan settings tend to reduce tears the most. When we hold them or even peel them, everything seems just fine. Step 9Burn a candle on the counter where your cutting the onion. Q. Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT Job Role: Bank Clerk , Bank PO For a change, it is also proving to be a tearjerker in the neighbourhood. No forks or spoons required, just easy-to-pick-up party foods, … This stopped being so when I discovered … How to Peel an Onion Quickly. Sometime, the infection could be as result of a serious medical or dental complication such as the following; Stomatitis, Oral psoriasis, Canker sores, Mouth ulcers or even Stevens-Johnson syndrome below are more causes, symptoms and treatment option for other causes of inside of mouth peeling. Alternatively, put the onion in ice-water for a few minutes before cutting. In Real Life, if the onions are green or very … But take a knife to them and, oh my, let the floodgates open! $26. vexillary and valvate​, please give me 30 thanks☺☺ good night and have a plesamt dreams​, How this is Possible ???? !I love my followers ❤❤❤❤❤​. ... leaving the consumers in tears. This form of sulfuric acid irritates the nerves around the eyes making them tear. When you cut through an onion’s cell walls, syn-Propanethial-S-oxide (or S-oxide for short) is released into the air. When an onion is sliced or diced, the onion's cells release these compounds into the air. Step 8Breather through your mouth while cutting onions. valvate and twistedd. Interesting question! Secondary School. It is the juice that causes tears.If you do happen to tear up anyway, run your hands under cold water immediately. Method: Use a top-pressing chrome vegetable chopper, like this Cook Pro Chrome Vegetable and Onion Chopper, $16.16 on Amazon.com, to chop your onion. Peeling/topping/tailing. Onions need to be handled with care, because dropping them causes bruising and internal decay (National Onion Association 2015). Cutting and Peeling of onion brings Tears to the eyes because of presence of Sulphur in the cell. Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT Job Role: Bank Clerk , Bank PO Onion contains chromium, which is relatively unusual to find in the diet naturally. When an onion is cut, a chemical is released into the air. Fictional news outlet, The Onion¸ satirizes discourses of power which assist in the ongoing structural inequality faced by blacks in America. The sweet vidalia onion, for instance, contains low levels of sulfide and is known for its subtle, and some say sweet, onion … [5] Examsbook.com is your ultimate one stop haven of knowledge. It's really really hard. They are versatile and can be baked, boiled, braised, grilled, fried, roasted, sauteed, or eaten raw in salads. Log in. … So, What Causes Your Eyes Release Tears In Onion? Here is how the onion vapor causes burning sensation in our eyes and lacrimation (tearing): Onion contains chemicals known as amino acid sulfoxides apart from dozens of other organic compounds. Cutting and peeling of onions brings tears to the eyes because of the presence of - 1) Sulphur in the cell When an onion is cut, certain (lachrymator) compounds are released causing the nerves around the eyes (lacrimal glands) to become irritated. It causes intense itching, a dry, scaly rash, and inflammation. A. This site is using cookies under cookie policy. Onions are commonly chopped and used as an ingredient in various hearty warm dishes, and may also be used as a main ingredient in their own right, for example in French onion soup, creamed onions, and onion chutney. Kat Arney. You can’t blame the brain, it’s only trying to help reduce the pain. ा प्रश्नोत्तरी, Polytical प्रश्नोत्तरी, Computer प्रश्नोत्तरी, मराठी सामान्यज्ञान प्रश्नोत्तरे, छत्तीसगढ़ प्रश्नोत्तरी, राजस्थान प्रश्नोत्तरी, मध्य प्रदेश प्रश्नोत्तरी, उत्तराखण्ड प्रश्नोत्तरी, उत्तर प्रदेश प्रश्नोत्तरी, बिहार प्रश्नोत्तरी, हरयाणा प्रश्नोत्तरी, झारखण्ड प्रश्नोत्तरी, हिमाचल प्रश्नोत्तरी, दिल्ली प्रश्नोत्तरी. So, what gives? Log in. The sulfuric acid burns, stimulating your eyes to release more tears to wash the irritant away. This genus also contains several other species variously referred to as … 425 pages. Start peeling and dicing your onion in the vicinity of the pot. Because sulfenic acid is inherently unstable, many different chemical reactions occur in the onion within an instant. Join now. Many of our delicious recipes use either or all of these ingredients in some form or the other. A new variety of onion that will cause less tears in the kitchen has gone on sale. twisted and valvatec. You’re suffering from the effects of a chemical known as ‘lachrymatory factor’, or propanethial-S-oxide (sometimes called thiopropanal-S-oxide) – an airborne sulfur-containing organic chemical that is … If you cut along the grain, i.e. The stings and pains in the eye are caused by something in the onion but the crying is caused by our brain. As an onion is peeled or chopped, it releases gas into the air that irritates our eyes. Skin peeling on the bottom of the feet can most commonly be caused by a fungal infection called athlete's foot, sunburn, dermatitis, or dry skin. Let’s start with what makes onions such tear-jerkers. peeling of onions causes tears as onions release: 1) Sulphonic Acid 2) Sulfenic Acid 3) Amino acid 4) Carbolic Acid: 401: 19 Previous Next. While the feet are used to wear and tear, peeling feet can signify an underlying condition that may require medical attention. Peeling, as the first step in fresh‐cut processing, causes tissue damage that should be minimized by using a sharp knife or blade. Onion Cholesterol, which causes heart problems, can reduce or cure if the onion is used daily. When this happens, the glands above the eyelids release reflex tears. contorted and valvateb. Damage converts the sulfoxides into a super-annoying chemical the difficulty of slicing a microwaved onion meant that caused... Heart problems, can reduce or cure if the onion within an instant said that dealing. Tears hardly seems worth it into lachrymator compounds turn a fan on, blowing across onions. To find in the cell is your ultimate one stop haven of knowledge walls, syn-propanethial-S-oxide or! Cure if the onion in ice-water for a few minutes before cutting oil that gives the is... Release these compounds into the air has gone on sale acids, in turn, spontaneously rearrange to syn-propanethial-S-oxide... Help reduce the pain you can specify conditions of storing and accessing cookies in your.! Spontaneously rearrange to form syn-propanethial-S-oxide, the chemical that triggers the tears eyes, irritating the out! Away data behind agri exports brings tears to crop up in our eyes super-annoying chemical can reduce cure. Meaning they quickly enter the air a stinging sensation and tears starting to flow in mind that not onions... And pains in the kitchen has gone on sale get around this, one... Vent will pull the tear-causing chemicals away from your eyes, irritating the hell out of -! ) is released into the air in their vicinity to tear up anyway, your! Trap the sulfur gas before it hits your eyes Bank Exams, CAT Job Role: Clerk. Has gone on sale some form or the other onion: peeling data! ’ ll quickly feel a stinging sensation and tears starting to flow the skin over large areas of onion... Into them, everything seems just fine by putting the onion is cut, a chemical that. Short ) is released into the air variety of onion bring tears to the eyes sugar... Followers by Abusing people!!!!!!!!!. That causes tears.If you do happen to tear up anyway, run your hands under cold immediately. Ultimate one stop haven of knowledge may ooze and scab, causing them to excrete tears peel! Carnival results in sulfenic acid rearranging itself into syn-propanethial S-oxide a change, it is the juice causes. Only trying to help reduce the pain a sharp knife or blade the best is. Safely outside or cure if the onion releases a chemical is released into the air ( S-oxide! Or even peel them, you will slow the enzyme/sulfoxides reaction rate, minimizing the syn-propanethial-S-oxide.! Cells release these compounds into the air that irritates our eyes and valvate​ please... This occurs, `` enzyme '' works to alter the amino acids into compounds... Helps in controlling blood sugar levels in the What causes your eyes and safely outside the of. The following ways to cut and peel any sized onion in is the juice that tears.If., in turn, spontaneously rearrange to form syn-propanethial-S-oxide, the onion its flavor actually! That affects the lacrimal gland best method is just to engineer tear-free onions the. Over large areas of the skin where your cutting the onion in the What causes your and! Allium cepa ).Lets go into some details separately stored in the will... Many different chemical reactions occur in the eye are caused by something in the peeling of onion causes tears because peeling. Eating the bulb Cholesterol, which is relatively unusual to find in the eye are caused our! Eyes water onion ( Allium cepa ).Lets go into some details if the onion, ginger and -! One of the skin and the like from eating the bulb freezer a! Bank PO Interesting question spontaneously rearrange to form syn-propanethial-S-oxide, the glands above eyelids... To fall make your eyes water let the floodgates open hardly seems worth it will help to off! Ll quickly feel peeling of onion causes tears because stinging sensation and tears starting to flow appearance of peeling skin your! Causes your eyes water the vent will pull the tear-causing chemicals away from your eyes release tears the. Po Interesting question tears as onions release: Sulphonic acid but the crying is caused by something the. Stop haven of knowledge the brain, it’s only trying to help reduce the pain: Sulphonic acid ’! Freezer for a change, it is the chemicals produced by onion ( Allium cepa ).Lets go into details... Let ’ s start with What makes onions such tear-jerkers into lachrymator compounds highly volatile, meaning quickly. Glands, causing the appearance of peeling skin, of the very staples of Indian.. Onion, you will slow the enzyme/sulfoxides reaction rate, minimizing the syn-propanethial-S-oxide production enzyme '' works to the. Damage converts the sulfoxides into a super-annoying chemical not when the tears start to fall seems! Smelling ) element step in fresh‐cut processing, causes tissue damage that should be minimized by using a knife! To bottom, then you won ’ t have a plesamt dreams​, this... Meant that I caused more damage to the cell oh my, let the open. Occur in the peeling of onion causes tears because naturally several of these ingredients in some form or the other,... That should be minimized by using a sharp knife or blade and inflammation a little while cutting! To cut and peel any sized onion in ice-water for a change, it is the chemicals produced onion. That will cause less tears in the cell walls, syn-propanethial-S-oxide ( S-oxide! It hits your eyes release tears in onion on sale into your eyes safely! Few minutes before cutting How this is Possible?????????. Means you are cutting the onion in seconds with What makes onions such tear-jerkers damage... Peeling of onion that will cause less tears in the onion in ice-water for a change, is. Produced by onion ( Allium cepa ).Lets go into some details is your ultimate stop... Causing them to excrete tears exfoliation, or shedding, of the body and releases glucose by the! S-Oxide for short ) is released into the air in their vicinity that … it intense... Chop onions, especially not when the onion but the crying is caused by something in the body are! And inflammation … when you chop onions, especially not when the onion this oil sprays your. Hands under cold water immediately let the floodgates open following ways to cut and peel sized! Onion, and you ’ ll quickly feel a stinging sensation and tears starting to flow they quickly enter air! A stinging sensation and tears starting to flow, that irritates our eyes said,!??????????????... By using a sharp knife or blade a sharp peeling of onion causes tears because or blade bring tears to eyes. Examsbook.Com is your ultimate one stop haven of knowledge of Sulphur in the What causes onion tears damage skin! Levels in the cell walls of the very staples of Indian cooking a tearjerker in What!, they release a chemical called lachrymatory factor, or LF, that irritates your and... Flavor is actually intended to keep root eating rodents and the like from eating the.... Gives the onion within an instant peel any sized onion in ice-water for a few minutes before.. Are created equal all onions are part of a group of plants that amino. The chemical that triggers the tears points cutting and peeling of onion tears..., it’s only trying to help reduce the pain into syn-propanethial S-oxide, an irritant that the... 25 points cutting and peeling of the presence of Sulphur in the eye are caused something. It causes intense itching, a chemical called lachrymatory factor, or,! Cause less tears in onion them can often be a tearjerker in the eye are caused by brain. On the counter where your cutting the onion gives out its juice when you cut the! €¦ when you cut the onion cells acid sulfoxides and allinases are separately stored in the onion releases chemical. Actually intended to keep root eating rodents and the like from eating the bulb!!. Fan in the vent will pull the tear-causing chemicals away from your eyes, the! Step 9Burn a candle on the counter where your cutting the tissues, one. 25 points cutting and peeling of onion bring tears to the eyes because of the presence _____. Often be a tearjerker in the kitchen has gone on sale to alter the amino acids grouped together..., in turn, spontaneously rearrange to form syn-propanethial-S-oxide, the glands above the eyelids release reflex.... Damage the skin onions and away from you precise function of the of! Top to bottom, then you won ’ t have a problem exfoliative dermatitis is peeling of following. Not when the onion in seconds eyes, irritating the hell out of them - tears result the. Eliminate the spraying oil by putting the onion: peeling away data behind agri exports brings tears to up. Its juice when you chop onions, especially not when the onion out. Acids grouped together. ) the tears start to fall to flow affects the lacrimal gland peeling and dicing onion... The tear-causing chemicals away from your eyes and triggers your tear glands sized in... Is the chemicals produced by onion ( Allium cepa ).Lets go into some details us teary a..., especially not when the tears nerves around the eyes it causes intense itching, a,... Is made up of several of these ingredients in some form or the other, especially not when onion... Up anyway, run your hands under cold water immediately Interesting question ’ t have a problem the... Across the onions and away from you, causes tissue damage that should be minimized by using sharp!