Promwee Athakorn, Chinarak Khanittha, Panpipat Worawan, Panya Atikorn, Phonsatta Natthaporn, Harcet Matija, Chaijan Manat
Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand.
Food Biotechnology Research Team, Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phaholyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.
Foods. 2023 Sep 19;12(18):3474. doi: 10.3390/foods12183474.
Herein, the effect of supplementing ground sago palm trunk (GSPT) with varying concentrations of plant-based ingredients (PIs), including rice bran (RB), soybean meal (SM), and perilla seed (PS), on the nutritional profile of sago palm weevil larvae (SPWL) was investigated. Increased PS intake induced an increase in α-linolenic acid level and a reduction in the n-6/n-3 ratio in SPWL ( < 0.05). The presence of fatty acids in SPWL was determined predominantly by the fatty acid profile in the feed. The activities of Δ5 + Δ6 desaturases and thioesterase were not different among SPWL fed different diets ( < 0.05); however, PI intake resulted in low suppression of 2 gene expression. RB, SM, and PS at the appropriate concentrations of 17.5%, 8.8%, and 7.0% in GSPT (F3 diet), respectively, boosted both protein quantity and quality of SPWL, as indicated by higher levels of essential amino acids, particularly lysine, than the FAO protein reference. Therefore, incorporating PIs into a regular diet is a viable method for enhancing the nutritional value and sustainability of farm-raised SPWL as a potential alternative source of high-quality lipid and protein.
在此，研究了用不同浓度的植物性成分（PI），包括米糠（RB）、豆粕（SM）和紫苏籽（PS）补充西米棕榈树干（GSPT）对西米棕榈象甲幼虫（SPWL）营养成分的影响。增加PS摄入量会导致SPWL中α-亚麻酸水平升高，n-6/n-3比值降低（<0.05）。SPWL中脂肪酸的存在主要由饲料中的脂肪酸组成决定。喂食不同日粮的SPWL中Δ5 + Δ6去饱和酶和硫酯酶的活性没有差异（<0.05）；然而，PI摄入导致2个基因表达受到低水平抑制。GSPT中分别以17.5%、8.8%和7.0%的适当浓度添加RB、SM和PS（F3日粮），提高了SPWL的蛋白质数量和质量，必需氨基酸水平，特别是赖氨酸水平高于粮农组织蛋白质参考标准。因此，将PI纳入常规日粮是提高农场养殖SPWL作为优质脂质和蛋白质潜在替代来源的营养价值和可持续性的可行方法。
