title: Nutritional composition and protein quality of the edible beetle Holotrichia parallela.
abstract: The adult edible beetle Holotrichia parallela Motschulsky (Coleoptera: Scarabaeoidea) represents a traditional food source in China. Based on nutritional analyses, adult H. parallela is high in protein (70%) and minerals and low in fat. H. parallela contained approximately 10% chitin; the corrected protein content was 66%. Oleic acid and linoleic acid were the most abundant fatty acids. Of the total amino acids in H. parallela, 47.4% were essential amino acids. The amino acid scores were 87 and 100, based on the corrected crude and net protein contents, respectively; threonine was the limiting amino acid. In vitro protein digestibility was 78%, and the protein digestibility-corrected amino acid score was 89 based on the net protein content. Adult H. parallela may be a potential source of proteins and minerals for humans and animals.
authors.affiliation: Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, Shandong, People's Republic of China Shandong Peanut Research Institute, No. 126 Fushan Road, Qingdao 266100, Shandong, People's Republic of China.
authors.forename: Qingli
authors.initials: Q
authors.lastname: Yang
authors.affiliation: Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, Shandong, People's Republic of China.
authors.forename: Shaofang
authors.initials: S
authors.lastname: Liu
authors.affiliation: Shandong Peanut Research Institute, No. 126 Fushan Road, Qingdao 266100, Shandong, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Sun
authors.affiliation: Shandong Peanut Research Institute, No. 126 Fushan Road, Qingdao 266100, Shandong, People's Republic of China.
authors.forename: Lina
authors.initials: L
authors.lastname: Yu
authors.affiliation: Shandong Peanut Research Institute, No. 126 Fushan Road, Qingdao 266100, Shandong, People's Republic of China.
authors.forename: Chushu
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Shandong Peanut Research Institute, No. 126 Fushan Road, Qingdao 266100, Shandong, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Bi
authors.affiliation: Shandong Peanut Research Institute, No. 126 Fushan Road, Qingdao 266100, Shandong, People's Republic of China rice407@163.com.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Yang
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D000818:Animals; D002681:China; D002686:Chitin / Q000032:analysis; D001517:Coleoptera / Q000737:chemistry* / Q000378:metabolism; D004044:Dietary Proteins / Q000378:metabolism*; D005227:Fatty Acids / Q000032:analysis*; D019476:Insect Proteins / Q000378:metabolism*; D009753:Nutritive Value; D014131:Trace Elements / Q000032:analysis
chemical_list: D000596:Amino Acids; D004044:Dietary Proteins; D005227:Fatty Acids; D019476:Insect Proteins; D014131:Trace Elements; D002686:Chitin
keywords: Holotrichia parallela; amino acid composition; beetle; nutritional composition; protein quality