کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1184753 1492075 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nutritional value of duckweeds (Lemnaceae) as human food
ترجمه فارسی عنوان
ارزش تغذیه جلبک ها (Lemnaceae) به عنوان غذای انسانی
کلمات کلیدی
AA، اسیدهای آمینه؛ AAS، اسید آمینه اسید؛ آلا، آلانین؛ ALA، a-linolenic acid؛ ارگ، آرژنین؛ ASP، اسید اسپارتیک؛ Cys، Cysteine؛ DW، وزن خشک؛ EAA، اسید آمینه ضروری؛ EAAI، شاخص اسید آمینه ضروری؛ ضروری AA / غیر ضروری AA، EAA / NEAA؛ EPA، eico
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Duckweeds contain 20–35% protein, 4–7% fat, 4–10% starch per dry weight.
• Proteins constitute 4.8% Lys, 2.7% Met + Cys, and 7.7% Phe + Tyr.
• 48–71% of fat are polyunsaturated fatty acids, the n6/n3 ratio is 0.5 or less.
• Mineral content can be easily manipulated by the composition of the nutrient medium.
• Wolffia microscopica and Wolffiella hyalina are desirable as human food.

Duckweeds have been consumed as human food since long. Species of the duckweed genera, Spirodela, Landoltia, Lemna, Wolffiella and Wolffia were analysed for protein, fat, and starch contents as well as their amino acid and fatty acid distribution. Protein content spanned from 20% to 35%, fat from 4% to 7%, and starch from 4% to 10% per dry weight. Interestingly, the amino acid distributions are close to the WHO recommendations, having e.g. 4.8% Lys, 2.7% Met + Cys, and 7.7% Phe + Tyr. The content of polyunsaturated fatty acids was between 48 and 71% and the high content of n3 fatty acids resulted in a favourable n6/n3 ratio of 0.5 or less. The phytosterol content in the fastest growing angiosperm, W. microscopica, was 50 mg g−1 lipid. However, the content of trace elements can be adjusted by cultivation conditions. Accordingly, W. hyalina and W. microscopica are recommended for human nutrition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 217, 15 February 2017, Pages 266–273
نویسندگان
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