›› 2015, Vol. 42 ›› Issue (4): 915-922.doi: 10.16431/j.cnki.1671-7236.2015.04.022

Previous Articles     Next Articles

Analysis on the Nutrient Composition and Storage Characteristics in the Powder of Zophobas Morio Larvae

RONG Ting1, LIU Zhi-chang1, SONG Hao-ming2, LI Shu-hong1, YE Zhu-liang3, WANG Gang1   

  1. 1. State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
    2. Guangzhou Wufeng Animal Health Products Co., Ltd., Guangzhou 510640, China;
    3. North China Rare Insect Breeding Research Center of Dongguan City, Dongguan 523800, China
  • Received:2014-09-01 Online:2015-04-20 Published:2015-05-05

Abstract: A series of experiments were conducted to analyze moisture, crude protein, crude fat, crude ash, parts of vitamins and minerals, amino acid and fatty acid composition in the powder of Zophobas morio larvae by methods of the national standards (GB), and to investigate the storage characteristics of the powder. The results showed that the moisture, crude fat, crude protein and ash in the fresh young larvae were 58.13%, 16.68%, 18.71% and 1.52%, as well as 52.65%, 18.03%, 16.84% and 1.89% in that of the old larvae, respectively. The crude fat in the powder of young and old larvae (YOL) was 30.02% and 33.80%. The ratio of the unsaturated fatty acids to that of total fatty acids were 58.12% and 58.68%, containing high amount of oleic (C18:1) and linoleic acid (C18:2). Whereas, the ratios of the saturated fatty acids to that of total fatty acids were 41.88% and 38.12%, containing high amount of palmitic acid (30 63% and 28.80%, respectively). The crude protein in the powder of YOL was 49.12% and 45.70%. They were all comprised of 17 kinds of amino acids (Try not measured), and the contents of the total of amino acids were 42.66 and 39.36 g/100 g. The essential amino acids in YOL were high, accounting for 44.82% and 44.41% of the total amino acids. Moreover, the contents of vitamins and mineral matters were abundant in the powder of YOL, and the ratio of VE, VC and VB2, as well as K, P, Zn and Fe were high in the vitamins and mineral matters, respectively. Rancidity of the powder of the young larvae was changed quickly under the conditions of the higher temperature, higher relative humidity and higher moisture content, with the storage time prolonged. Therefore, the proper storage conditions of the powder of the young larvae were at temperature below 20 ℃, relative humidity below 60%, with the moisture of the powder controlled less than 10.0%. So the powder of Zophobas morio larvae was developed as a new feed resource used in animal husbandry, with extremely high nutritional values.

Key words: Zophobas morio larvae; nutrient composition; storage

CLC Number: