烹饪蔬果的15大误区需要认清.doc

家里炒菜，一般是蔬菜居多，都知道吃蔬菜的好处有很多。但是你家烹饪蔬菜肯定有一些错误的做法，而你肯定不知道，下面就让小编为你盘点一下烹饪蔬菜会出现的几个错误。1、维生素C、B1都怕热因此炒菜避免用小火焖，应该用旺火炒。再有，加少许醋，也有利于维生素保存。还有些蔬菜更适于凉拌来吃，比如黄瓜、番茄等等。相关视频：蔬菜炒太久会致癌？2、一次买很多蔬菜上班族通常喜欢一周做一次大采购，把采购回来的蔬菜存在家里慢慢吃，这样虽然节省时间、方便，但是要知道，蔬菜每多放置1天就会损失大量的营养素，例如菠菜，在通常状况下(20)每放置一天，维生素C损失高达84%。因此，应该尽量减少蔬菜的储藏时间。如果储藏也应该选择干燥、通风、避光的地方。3、丢掉含维生素最多的部分人们的一些习惯性蔬菜加工方式也影响蔬菜中营养素的含量。例如，有人为了吃豆芽的芽而将豆瓣丢掉，实际上豆瓣的维生素C含量比豆芽多23倍。再比如，做饺子馅的时候把菜汁挤掉，维生素也会损失70%以上。正确的方法是，切好菜后用油拌好，再加盐和调料，这样油包菜的方法，饺子馅就没那么多汤了。4、菜做好了不马上吃很多人喜欢做好了饭菜后放在锅里温着或者放在保温桶里面，等上一段时间再吃。这样也会损失大量的营养物质，试想，辛辛苦苦做好的饭菜，因为没有立刻吃而使饭菜变得毫无营养，该多可惜啊。炒菜时，蔬菜中大量的营养物质都溶解在菜汤里了，不喝多可惜。5、经常在餐前吃西红柿西红柿应该在餐后再吃。这样，可使胃酸和食物混合大大降低酸度，避免胃内压力升高引起胃扩张，使宝宝产生腹痛、胃部不适等症状。6、胡萝卜与萝卜混在一起做成泥酱不要把胡萝卜与萝卜一起磨成泥酱。因为，胡萝卜中含有能够破坏维生素C的酵素，会把萝卜中的维生素C完全破坏掉。7、过量食用胡萝卜素虽然胡萝卜素对宝宝很有营养，但也要注意适量食用。宝宝过多饮用以胡萝卜或西红柿做成的蔬菜果汁，都有可能引起胡萝卜血症，使面部和手部皮肤变成橙黄色，出现食欲不振、精神状态不稳定、烦燥不安、甚至睡眠不踏实，还伴有夜惊、啼哭、说梦话等表现。8、香菇洗得太干净或用水浸泡香菇中含有麦角淄醇，在接受阳光照射后会转变为维生素D。但如果在吃前不过度清洗或用水浸泡，就不会损失很多营养成分。煮蘑菇时也不能用铁锅或铜锅，以免造成营养损失。9、吃未炒熟的豆芽菜豆芽质嫩鲜美，营养丰富，但吃时一定要炒熟。不然，食用后会出现恶心、呕吐、腹泻、头晕等不适反应。10、给宝宝吃没用沸水焯过的苦瓜苦瓜中的草酸会妨碍食物中的钙吸收。因此，在吃之前应先把苦瓜放在沸水中焯一下，去除草酸，需要补充大量钙的宝宝不能吃太多的苦瓜。11、韭菜做熟后存放过久韭菜最好现做现吃，不能久放。如果存放过久，其中大量的硝酸盐会转变成亚硝酸盐，引起毒性反应。另外，宝宝消化不良也不能吃韭菜。12、把绿叶蔬菜长时间地焖煮着吃绿叶蔬菜在烹调时不宜长时间地焖煮。不然，绿叶蔬菜中的硝酸盐将会转变成亚硝酸盐，容易使宝宝食物中毒。13、速冻蔬菜煮得时间过长速冻蔬菜类大多已经被涮过，不必煮得时间过长，不然就会烂掉，丧失很多营养。14、不要用搅拌机或食品处理机来打果汁很多人用搅拌机或食品处理机来榨鲜果汁喝，以为这样做能完整吸收水果营养。其实在搅拌过程中，水果所含的维生素C会不断被氧化破坏。建议改用果汁机，它能迅速把水果的液体部分和残渣分离，大大降低维生素C的氧化程度。15、不要把含“维生素C分解酶”的蔬菜同水果一起烹饪很多家庭喜欢把新鲜蔬菜水果混合一起做沙拉吃。但要注意，胡萝卜、黄瓜、苹果、香蕉等蔬果含有“维生素C分解酶”，混合吃会破坏其他蔬果所含的维生素C。不过，这种分解酶怕热，做沙拉时，胡萝卜可以先加热再用；苹果、香蕉等不易加热的水果可以先浇上柠檬汁，也有破坏分解酶的效果。Homecooking,the vegetablesaregenerally,all know that there are manyvegetablesbenefits.Butyour homecookingvegetables,there must be somemistake,and /post/80.html youcertainly dont know,let the followingXiaobian foryouto check themistakesof cooking vegetableswill appear.1,vitamin C,B1are afraid ofheatCooking to avoida small fire stew,shouldstir fry.Again,add a littlevinegar,but also conducive to thepreservationof vitamin.Somevegetables are moresuitable for a salad to eat,such as cucumber,tomatoand so on.Video:vegetablestoo longwill cause cancer?2,buy alot of vegetablesWorkers usuallylikea week to do abigpurchase,thepurchaseofvegetables werebackhometo eat slowly,although thistime saving,convenient,but you know, placed morenutrition1 days will bea loss ofpigment,such asspinach,under ordinary conditions(20 )eachplacedone day,vitamin Closses of up to 84%.Therefore,should try toreduce the storage time of the vegetables.If the storage should also choose dry,ventilatedplace,avoid light.3,lose the vitamin most partPeopleshabitual vegetable processing methods alsoaffect the content ofnutrientsin vegetables.For example,someone to eat bean sproutsbud and watercress,in fact watercress vitamin C content of2 3 timesmorethan thebean sprouts.For example,do the dumplingsjuice squeezed out,vitamins will be lost more than 70%.The correct way is tocut food oil,mix well,thenadd salt andseasoning,such oil cabbage,dumplings not sosoup.4,the dishes do not immediately eatMany people like good foodin thepotErevanorplaced in thermosbucket,wait for a longtime.It would alsolose a lotof nutrients,imagine,hard to do the cooking,did not immediately food became no nutrition,the more a pity.When cooking,the vegetablesin a large number of nutrients dissolvedin the soup,do not drink too much pity.5,eat tomatoes regularlybefore a mealMeal should eat tomatoes.In this way,cangreatly reduce gastric acid and food mixedacidity,avoid the stomach pressure increases caused bydilatation of the stomach,makes babyhave abdominal pain,stomach discomfort and othersymptoms.6,carrotandcarrotmix into themudDont groundcarrotandradishintomudtogether.Because,carrotscontainvitaminC thatcandamage theenzyme in aradish, so thatitsvitaminC isfullydestroyed.7,excessive consumption ofcaroteneAlthoughcaroteneis thebabynutrition,but we shouldpay attentiontoadequatefood.The babytoo muchdrinkingwithcarrots ortomatoesvegetablejuice,are likely to causecarrots hyperlipidemia,make the face andhand skinbecomes orangeyellow,loss of appetite,mental state is not stable,restlessness,even sleepnot steadfast,accompanied bynight terrors,crying,talkshow.8,mushroomswashedvery cleanor water immersionContainingergot Catalpolmushrooms,after receiving sunlight can beconverted intovitamin D.But ifbefore eatingis not excessivecleaningor water immersion,will notlose a lot ofnutrients.Cookmushroomscan notuse ironor copperpot,so as not to causeloss of nutrients.9,eatnotcookedbean sproutsThe bean sprouts aredelicious,nutrition is rich,butbe sure to eatfried.Otherwise,foodwill be nausea,vomiting,diarrhea,dizziness and discomfortreaction.10,give the baby to eatnotboiling waterblanchedgourdBitter gourdinoxalic acid canhinder the absorption ofcalcium in food.Therefore,before eatingshould first thebitter gourdplacedin boiling waterboiled,remove theneed to fill a lot of calciumoxalate,baby can noteat too muchbitter gourd.11,leekcookedtoo long after the storeLeekis best to do now isto eat,cantkeep long.Ifstored for a long time,theamount of nitrateintonitrite,cause the toxic reaction.In addition,the baby indigestioncannoteat the leek.12,thegreen leafy vegetables,long timetostewcookedGreen leafyvegetablesshould not becookedover alongtime.Otherwise,in the green leafy vegetablesnitratewillchangeinto nitrite,easy to make babyfood poisoning.13,frozen vegetablescooked too longFrozenvegetableshave mostlybeen rinsed,notcooked too long,otherwiseit will rot away,lost a lot ofnutrition.14,do not usethe blender or foodprocessorto makejuiceMany people usethe blender or foodprocessorforsqueezing juicedrink,think itcan absorb thenutritious fruit.In fact,in the mixing process,the fruitcontains vitamin Cwill bedestroyed by oxidation.It is recommended to usethe juic