Judith Achoki, Paul Orina, Catherine Kaingu, Jemima Oduma, Kennedy Olale, Mercy Chepkirui, Albert Getabu
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引用次数: 0
摘要
全球对使用浮萍（Lemna minor）作为鱼类、牲畜和人类饮食替代品的兴趣，促进了对该物种大规模养殖的研究。有关不同水产养殖环境中小浮萍脂肪酸组成的信息十分匮乏。本研究对在室内塑料水箱和室外土池中养殖 30 天的小鳞鱼的脂肪酸组成进行了比较研究。在养殖期间，养殖设施使用牲畜粪便施肥。脂肪酸的表征采用气相色谱法进行。确定了 15 种脂肪酸：5 种饱和脂肪酸（SAFAs）、5 种单不饱和脂肪酸（MUFAS）和 5 种多不饱和脂肪酸（PUFAs）。室内和室外的脂肪酸组成各不相同。室外培养的小鳞藻类多不饱和脂肪酸的百分比组成（37.13）高于室内（21.96）。室内培养的 L. minor SAFAs 百分比组成较高，为 41.63%，而室外为 33.75%。室内养殖池中的 L. minor MUFAs（36.32%）高于室外土池中的 MUFAs（29.10%）。该研究表明，小鳞藻类中含有二十二碳六烯酸、二十碳五烯酸、亚麻酸和二十烷酸，这在过去的研究中很少见。配对学生 t 检验表明，两种情况下脂肪酸组成的平均值有显著差异（p<0.05），其中二十二碳六烯酸的配对平均值差异最大。
Comparative Study on Fatty Acids Composition of Lemna minor (Duckweed) Cultured in Indoor Plastic Tanks and Outdoor Earthen Ponds
Global interest in using duckweed (Lemna minor) as a substitute for fish, livestock, and human diets has spurred research on the mass culture of the species. There is a scarcity of information on the L. minor fatty acid composition in different aquaculture settings. A comparative study was carried out to investigate the fatty acid composition of L. minor cultured in indoor plastic tanks and outdoor earthen ponds for 30 days. During the culture period, culture facilities were fertilized using livestock manure. Fatty acid characterization was done using gas chromatography method. Fifteen fatty acids: five saturated (SAFAs), five monounsaturated (MUFAS), and five polyunsaturated (PUFAs) were identified. Fatty acid compositions varied between indoor and outdoor settings. Percentage composition of L. minor PUFAs cultured outdoor (37.13) was higher than that of indoor (21.96) settings. L. minor SAFAs percentage composition was higher in the indoor culture at 41.63% while that of outdoor was 33.75%. The composition of L. minor MUFAs in indoor tanks was higher (36.32%) than in outdoor earthen ponds (29.10%). This study indicated the presence of docosahexaenoic, eicosapentaenoic, linoelaidic, and eicosanoic acids in L. minor seldom reported in past studies. Paired Students’ t-test indicated that the means of the fatty acid composition were significantly different (p < 0.05) in both settings, with docosahexaenoic showing the highest paired mean difference.
期刊介绍：
International in perspective, Aquaculture Research is published 12 times a year and specifically addresses research and reference needs of all working and studying within the many varied areas of aquaculture. The Journal regularly publishes papers on applied or scientific research relevant to freshwater, brackish, and marine aquaculture. It covers all aquatic organisms, floristic and faunistic, related directly or indirectly to human consumption. The journal also includes review articles, short communications and technical papers. Young scientists are particularly encouraged to submit short communications based on their own research.
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