Fatty Acid Composition and Volatile Constituents of Protaetia brevitarsis Larvae

Abstract

A total of 48 different volatile oils were identified form P. brevitarsis larvae by gas chromatography/mass spectrometry (GC/MS). Acids (48.67%) were detected as the major group in P. brevitarsis larvae comprising the largest proportion of the volatile compounds, followed by esters (19.84%), hydrocarbons (18.90%), alcohols (8.37%), miscellaneous (1.71%), aldehydes (1.35%) and terpenes (1.16%). The major volatile constituents were 9-hexadecenoic acid (16.75%), 6-octadecenoic acid (14.88%) and n-hexadecanoic acid (11.06%). The composition of fatty acid was also determined by GC analysis and 16 fatty acids were identified. The predominant fatty acids were oleic acid (C18:1, 64.24%) followed by palmitic acid (C16:0, 15.89%), palmitoleic acid (C16:1, 10.43%) and linoleic acid (C18:2, 4.69%) constituting more than 95% of total fatty acids. The distinguished characteristic of the fatty acid profile of P. brevitarsis larvae was the high proportion of unsaturated fatty acid (80.54% of total fatty acids) versus saturated fatty acids (19.46% of total fatty acids). Furthermore, small but significant amounts of linoleic, linolenic and γ-linolenic acids bestow P. brevitarsis larvae with considerable nutritional value. The novel findings of the present study provide a scientific basis for the comprehensive utilization of the insect as a nutritionally promising food source and a possibility for more effective utilization.

Hepatoprotective and antineoplastic properties of Protaetia brevitarsis larvae

“…There was a significant increase of cell viability in hepatocytes by treatment of 2 mg/mL extracts, which can be related to direct reduction of the MTT reagent by reductants in the extracts (Vistica et al 1991;Suh & Kang 2012), considering no increase of cell viability and proliferation (not shown here). Meanwhile, several cytotoxic fatty acids predominantly found in the PBL extracts such as palmitic acid, stearic acid and oleic acid (Yoo et al 2007;Yeo et al 2013), in contrast to the PBL extracts, showed strong cytotoxicity to normal hepatocytes as well (Fig. 3C).…”

Simultaneous detection of fungal, bacterial, and viral pathogens in insects by multiplex PCR and capillary electrophoresis

“…Following a global trend of using natural products from insects, the Korean government has been encouraging the development of insect resources for environmental and dietary purposes, traditional medicine, and as pets (Kim et al, 2013 Vol. 30, No.…”

“…To rapidly perform simultaneous identification and quantification of infectious agents, the concentration of pathogen genomic DNA could be calculated based on fluorescence intensity in Multiplex Ligation-dependent Probe Amplification (MPLA), which is a variation of multiplex PCR that permits amplification of multiple et Suh and Kang, 2012;Yeo et al, 2013;Yoo et al, 2007;Youn et al, 2014 (Coleoptera: Scarabaeidae) are extensively farmed in Korea (Aronson et al, 1986;Choi et al, 2003; Jander et al, 2000; Lee et al, 1997). Several reports indicate that these beetles can be used as functional food because of their antioxidant (Suh and Kang, 2012;Suh et al, 2010), anti-hepatofibrotic, anti-cancer, and anti-diabetic properties (Koyama et al, 2006;Miyanoshita et al, 1996;Taketa et al, 1986;Yamada et al, 2004;Yeo et al, 2013;Yoo et al, 2007;Yoon et al, 2003;Youn et al, 2012), and in Korea, P. b. seulensis and A. dichotoma are grown in farms.…”

“…Several reports indicate that these beetles can be used as functional food because of their antioxidant (Suh and Kang, 2012;Suh et al, 2010), anti-hepatofibrotic, anti-cancer, and anti-diabetic properties (Koyama et al, 2006;Miyanoshita et al, 1996;Taketa et al, 1986;Yamada et al, 2004;Yeo et al, 2013;Yoo et al, 2007;Yoon et al, 2003;Youn et al, 2012), and in Korea, P. b. seulensis and A. dichotoma are grown in farms. The industrialization of insect breeding requires constant monitoring, identification, and prevention of insect diseases caused by various parasitic agents (Papp et al, 2014).…”

Anti-Inflammatory Activity of Partially Purified Bioactive Materials From Protaetia Brevitarsis Seulensis Larvae.

“…5(11), 296-299 297 useful amino acid for improving cognitive ability and memory maintains the most amount (Chung et al, 2013;Noh et al, 2015). As crude fat is 16.1~18.5%, ratio of the unsaturated fatty acid is 75.5~76.4%, which oleic acid (C18:1) accounts for more than 60% among them (Chung et al, 2013;Yeo et al, 2013;Noh et al, 2015). Ash and total dietary fiber contents have been reported by 8.36% and 5.31%, respectively.…”