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融雪旭日銅蟲 (小有名氣)
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[交流]
【求助】雞蛋的蛋白質(zhì)濃度問(wèn)題!各位大俠請(qǐng)幫忙。
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小弟,想知道雞蛋清、雞蛋黃和全蛋液中的蛋白質(zhì)含量分別為多少,它們的蛋白質(zhì)濃度(mg/ml)各是多少,注意是mg/ml,不是用百分?jǐn)?shù)表示。! 感激不盡。! |
榮譽(yù)版主 (知名作家)

榮譽(yù)版主 (知名作家)

木蟲 (正式寫手)
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這個(gè)問(wèn)題是我們沒(méi)有確切的數(shù)據(jù),但是根據(jù)組分的百分?jǐn)?shù)比例,以及雞蛋的平均大小和重量,可以換算為重量體積濃度的。 http://www.baking911.com/pantry/eggs.htm 根據(jù)美國(guó)農(nóng)業(yè)部的要求只有AA 和A大小級(jí)別的雞蛋才能上市為人所食用always use 50 gram weight (20 gram yolk and 30 gram white) for Grade A EGG SIZE WHOLE WHITE YOLK 1 Large (50 grams) 1.76 oz. = 1/4 cup = 4 TBSP 2 TBSP + 2 tsps 1 TBSP + 1 tsp TBSP是tablespoon的縮寫,根據(jù)wikipedia 1 U.S. tablespoon = 1?2 U.S. fl oz = 4 fluid drams = 1?16 U.S. cup = 14.8 ml[4] 1 Australian tablespoon = 20 ml or ~? fl. oz. 因此整個(gè)雞蛋的體積為14.8×4=59.2ml,重50mg。雞蛋中各種營(yíng)養(yǎng)成分如下表:用其質(zhì)量除以兩個(gè)雞蛋的體積118.4ml就可得到不同組分的質(zhì)量體積濃度了。 utritional value per 100 g (3.5 oz) Energy 647 kJ (155 kcal) Carbohydrates 1.12 g Fat 10.6 g Protein 12.6 g Tryptophan 0.153 g Threonine 0.604 g Isoleucine 0.686 g Leucine 1.075 g Lysine 0.904 g Methionine 0.392 g Cystine 0.292 g Phenylalanine 0.668 g Tyrosine 0.513 g Valine 0.767 g Arginine 0.755 g Histidine 0.298 g Alanine 0.700 g Aspartic acid 1.264 g Glutamic acid 1.644 g Glycine 0.423 g Proline 0.501 g Serine 0.936 g Water 75 g Vitamin A equiv. 140 μg (16%) Thiamine (Vit. B1) 0.066 mg (5%) Riboflavin (Vit. B2) 0.5 mg (33%) Pantothenic acid (B5) 1.4 mg (28%) Folate (Vit. B9) 44 μg (11%) Calcium 50 mg (5%) Iron 1.2 mg (10%) Magnesium 10 mg (3%) Phosphorus 172 mg (25%) Potassium 126 mg (3%) Zinc 1.0 mg (10%) Choline 225 mg Cholesterol 424 mg For edible portion only. Refuse: 12% (Shell). One large egg is 50 grams. Percentages are relative to US recommendations for adults. Source: USDA Nutrient database [ Last edited by jzhe961 on 2010-11-6 at 19:00 ] |
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