title: Lipid Profile in Different Parts of Edible Jellyfish Rhopilema esculentum.
abstract: Jellyfish Rhopilema esculentum has been exploited commercially as a delicious food for a long time. Although the edible and medicinal values of R. esculentum have gained extensive attention, the effects of lipids on its nutritional value have rarely been reported. In the present of study, the lipid profile including lipid classes, fatty acyl compositions, and fatty acid (FA) positions in lipids from different parts (oral arms, umbrella, and mouth stalk) of R. esculentum was explored by ultraperformance liquid chromatography--electrospray ionization--quadrupole time-of-flight mass spectrometry (UPLC-ESI-Q-TOF-MS). More than 87 species from 10 major lipid classes including phosphatidylcholine (PC), lysophosphatidylcholine (LPC), phosphatidylethanolamine (PE), lysophosphatidylethanolamine (LPE), phosphatidylinositol (PI), lysophosphatidylinositol (LPI), phosphatidylserine (PS), ceramide (Cer), ceramide 2-aminoethylphosphonate (CAEP), and triacylglycerol (TAG) were separated and characterized. Semiquantification of individual lipid species in different parts of R. esculentum was also conducted. Results showed that glycerophospholipids (GPLs) enriched in highly unsaturated fatty acids (HUFAs) were the major compenents in all parts of R. esculentum, which accounted for 54-63% of total lipids (TLs). Considering the high level of GPLs and the FA compositions in GPLs, jellyfish R. esculentum might have great potential as a health-promoting food for humans and as a growth-promoting diet for some commercial fish and crustaceans. Meanwhile, LPC, LPE, and LPI showed high levels in oral arms when compared with umbrella and mouth stalk, which may be due to the high proportion of phospholipase A2 (PLA2) in oral arms. Moreover, a high CAEP level was detected in oral arms, which may render cell membranes with resistance to chemical hydrolysis by PLA2. The relatively low TAG content could be associated with specific functions of oral arms.
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Si
authors: S
authors: Zhu
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Mengwei
authors: M
authors: Ye
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Jilin
authors: J
authors: Xu
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Chunyang
authors: C
authors: Guo
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Huakun
authors: H
authors: Zheng
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Jiabao
authors: J
authors: Hu
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Juanjuan
authors: J
authors: Chen
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Yajun
authors: Y
authors: Wang
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Shanliang
authors: S
authors: Xu
authors: Key Laboratory of Applied Marine Biotechnology of Ministry of Education and ‡Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University , Ningbo 315211, China.
authors: Xiaojun
authors: X
authors: Yan
mesh_terms: D000615:Aminoethylphosphonic Acid / Q000031:analogs & derivatives / Q000032:analysis; D000818:Animals; D002518:Ceramides / Q000032:analysis; D002851:Chromatography, High Pressure Liquid; D005227:Fatty Acids / Q000032:analysis; D005502:Food; D020404:Glycerophospholipids / Q000032:analysis; D006801:Humans; D008055:Lipids / Q000032:analysis*; D009753:Nutritive Value; D054467:Phospholipases A2 / Q000032:analysis; D037401:Scyphozoa / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D002518:Ceramides; D005227:Fatty Acids; D020404:Glycerophospholipids; D008055:Lipids; C002898:ceramide aminoethylphosphonate; D000615:Aminoethylphosphonic Acid; D054467:Phospholipases A2
keywords: UPLC-ESI-Q-TOF-MS; different parts; jellyfish Rhopilema esculentum; lipid profile