苹果去保鲜蜡
大多数人在吃苹果的时候习惯连皮一起吃掉,这是因为,苹果皮确实含有丰富的营养。相比较果肉而言,有更强的抗氧化性,还能预防高血压等慢性疾病;但有时候人们也会存在疑惑,吃苹果皮的时候感觉表面会有油状和蜡感,那么,这层蜡对身体到底有没有危害性?中国农业大学食品学院营养与食品安全系主任何计国明确表示,这层蜡食不会对身体产生危害,大家不用过于担心。
“苹果皮上的蜡一般分为两种”,何计国解释道,一种是苹果生长过程中形成的蜡,这是一种脂类成分,是在苹果表面生成的植物保护层。它可以有效地防止外界微生物、农药等入侵果肉,起到保护作用;另一种则是人工加上去的果蜡。正是这种“人工果蜡”,让不少人忧心。何计国告诉记者,这种物质本身对身体并无害处,其作用主要是用来保鲜的,防止苹果在长途运输、长时间储存中腐烂变质。
尽管苹果皮中的蜡本身对身体无害,但如果你想带皮吃,还是要洗干净,因为这层“保护膜”可能含有农药残留物等有害物质。“用手冲洗、刷洗都能洗干净”,何计国告诉记者,如果不放心的话,有两个“妙招”可以试试。一是挤点牙膏揉碎后将其溶在水里,用这个水洗后再用清水冲洗干净即可;二是把苹果放进温度适中的热水里,蜡遇热会融化,但水温不可太高。
“不过,千万不要泡洗”,何计国提醒道,将水果长时间泡在水里,可能导致农药残留物、微生物菌等有害物质渗入果肉里。不仅达不到清洗目的,还会“越洗越脏”,不利于健康
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(1) 将苹果放进热水(手可以接受的最高溫
度即可),這時候苹果的蜡会暈开。
(2) 牙膏塗抹在苹果上當清洁剂,如此即
可消除。
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拿一小匙放在手中,再轻轻的拭擦苹果表面,大概2-3分钟,用清水清洗一下,再用小刀刮刮苹果表面,你会发现表面的腊因为摩擦的作用被盐刮出来了
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正规水果上的蜡用温水冲洗就可以去除,但工业蜡除外。工业蜡可能含汞、铅等金属,会通过果皮渗透进果肉,会给健康造成危害。
辨别劣质蜡,只要用手或餐巾纸擦拭苹果表面就可以了。如果手或餐巾纸上留下淡淡的红色或绿色,就可能是工业蜡,千万别买。需要提醒的是,苹果买回家一定要用温水多冲洗几次。
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果皮上的蜡分三种
很多人不削皮吃苹果的时候,常常感觉苹果表面会有油状和蜡感,从而担心这层蜡对身体会不会有危害?范志红表示,果皮上的蜡主要有三种情况:苹果表面本身就带有一层果蜡,这是一种脂类成分,是在苹果表面生成的植物保护层,它可以有效地防止外界微生物、农药等入侵果肉,起到保护作用;一些高档苹果上面带有的蜡,是人工加上去的食用蜡,这种“人工果蜡”其实是一种壳聚糖物质,多从螃蟹、贝壳等甲壳类动物中提取而来,这种物质本身对身体并无害处,其作用主要是用来保鲜的,防止苹果在长途运输、长时间储存中腐烂变质。要去除这层使用蜡也非常简单,直接用热水冲洗即可去掉苹果表面的这层人工食用蜡。
人们要担心的其实是第三种蜡——不法小贩使用工业蜡给水果打蜡,其中所含的汞、铅可能通过果皮渗透进果肉,给人体带来危害。因此在挑选打蜡水果时,可用手或餐巾纸擦拭水果表面,如能擦下一层淡淡的红色,千万别买,这很有可能就是工业蜡。
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菜市场买把碱洒上过十分钟左右,看见苹果不青了就可以了。
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Plain water and a soft vegetable brush does the trick for all waxes - you would be amazed at how many store bought fruits and vegetables are waxed to give them that nice shiny appearance.
And it does a few other things, such as keep the fruit hydrated, prevent early rot and what not.
What is used is not wax like what you would get from a candle.
Carnauba wax is shaken from the harvested leaves of the carnauba palm. Shellac wax is a resin secreted by the lac beetle, an insect found in Asia, to protect its eggs. Lac production by this insect is similar to honey production by bees.
These are FDA approved fruit coverings, are harmless and since one gallon of wax can cover 12,000 pounds of fruit (that's a whole lot of apples) you really are not getting that much.
Did you know that it is mandatory for waxed covered fruits to be washed before they are waxed? Why is that, to prevent the trapping of mold and bacteria that cause decay in the fruit skin to begin with!
Beneath the wax is a clean piece of fruit.
Cheers
David
Google翻译:
平原水和蔬菜的软刷是否所有蜡伎俩 - 你将在商店买了多少水果和蔬菜都惊讶1:80给他们那可爱的光泽的外观。
例如,它并保持水果的水分,防止腐烂和早期什么不是少数,其他的事情。
什么是用蜡是不喜欢你会得到一个蜡烛。
巴西棕榈蜡是动摇从巴西棕榈棕榈树叶的收获。虫胶蜡是由紫胶虫分泌的树脂,昆虫在亚洲,以保护其产卵。紫胶虫生产此类似蜜蜂蜂蜜生产。
这是美国FDA批准的水果覆盖物,是无害的,因为一加仑的蜡可以以一万二千磅水果(这是一个苹果一大堆)你真的是没有得到这么多。
你知道,这是涉及到强制打蜡清洗前,水果打蜡?这是为什么,防止霉菌和细菌,导致皮肤腐烂的水果诱捕首先!
下面是一个水果蜡一块干净。
from:
http://answerpool.com/eve/forums/a/tpc/f/788608791/m/9626077394
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Apples produce their own wax, part of which is washed away during post-picking processing. The processors then typically apply a food-grade wax to the apples, which then adheres to the apple's own wax, making it extra hard to remove -- organic apples get no additional wax added. Remove it by washing gently in lukewarm water with a vegetable brush.
You could also use a fruit/veggie rinse like Fit, which does help remove wax (though I don't put much stock in it's other claims).
from:
http://askville.amazon.com/rid-w ... o?requestId=1360700
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Q: Is the wax on apples safe to eat? Why do they use it?
Now that it's apple season, I posed these questions to nutritional doctor Ingrid Kohlstadt, a Fellow at the American College of Nutrition and Associate with the Johns Hopkins School of Public Health. Her pioneering medical textbook "Food and Nutrients in Disease Management" will be out next year.
A:"Waxing apples allows them to be picked earlier and stored longer," said Kohlstadt. "A side effect [of earlier picking] is that there are fewer minerals and vitamins. The peels and seeds (for the few of us who eat them) are the most vitamin-rich parts of the apple. So I don't recommend peeling the apples. A tablespoon of lemon juice and a tablespoon of baking soda can be added to a sinkful of water to make a good scrubbing solution. This can remove the wax and any pesticides which might be trapped underneath it."
Google翻译:
问:对苹果安全蜡吃?他们为什么使用它?
现在,它的苹果的季节,我提出在营养和约翰霍普金斯大学公共卫生学院副教授美国这些问题,营养医生英格丽科尔施塔特,一研究员。她的开创性医学教科书“食品和营养在疾病管理”将于明年推出。
答:“打蜡苹果允许他们被采摘较早,保存更长的时间,说:”科尔施塔特。 “由早前的采摘]副作用[是,有少矿物质和维生素。果皮和种子为我们几个谁吃()是苹果维生素最丰富的地区。因此,我建议不要削皮苹果。汤匙的柠檬汁和一汤匙的小苏打可以添加到sinkful的水擦洗,使一个很好的解决。这可以去除蜡和任何可能被它下面被困农药。“