以天然食用植物混合物为食的可食用非洲飞蝗体内的脂肪酸含量及组成。
Fatty acid content and composition in edible Ruspolia differens feeding on mixtures of natural food plants.
作者信息
Rutaro Karlmax, Malinga Geoffrey M, Lehtovaara Vilma J, Opoke Robert, Nyeko Philip, Roininen Heikki, Valtonen Anu
机构信息
Department of Biochemistry and Sports Science, Makerere University, P.O. Box 7062, Kampala, Uganda.
Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 111, 80101, Joensuu, Finland.
出版信息
BMC Res Notes. 2018 Oct 1;11(1):687. doi: 10.1186/s13104-018-3792-9.
OBJECTIVES
To develop successful mass-rearing programs of edible insects, knowledge of the feeds and their influence on nutritional content is critical. We assessed the influence of natural food plants (grass inflorescences) and their mixtures on fatty acid profiles of edible Ruspolia differens. We reared neonate nymphs to adult on six dietary treatments consisting of one, and mixtures of two, three, five, six and eight plants.
RESULTS
The contents of saturated, monounsaturated and polyunsaturated fatty acids, omega-6/omega-3 ratio, and adult body weight did not differ among dietary treatments. However, the composition of fatty acids differed significantly among insects fed on six dietary treatments, but only for the rare fatty acids. Our results demonstrate that even if natural diets (grass inflorescences) do not strongly modify fatty acid contents or compositions of R. differens, when reared from neonate nymphs to adults, their n - 6/n - 3 fatty acid ratio is generally low and thus good for a healthy human diet.
目的
要制定成功的食用昆虫大规模饲养计划，了解饲料及其对营养成分的影响至关重要。我们评估了天然食用植物（草花序）及其混合物对可食用的异背蚱脂肪酸谱的影响。我们用六种饮食处理将若虫饲养至成虫，这六种饮食处理包括一种植物、两种植物的混合物、三种植物的混合物、五种植物的混合物、六种植物的混合物和八种植物的混合物。
结果
饱和脂肪酸、单不饱和脂肪酸和多不饱和脂肪酸的含量、ω-6/ω-3 比值以及成虫体重在不同饮食处理之间没有差异。然而，在六种饮食处理下饲养的昆虫之间，脂肪酸组成存在显著差异，但仅针对稀有脂肪酸。我们的结果表明，即使天然饮食（草花序）不会强烈改变异背蚱的脂肪酸含量或组成，但从若虫饲养至成虫时，它们的n-6/n-3脂肪酸比值通常较低，因此有利于健康的人类饮食。
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