广东海洋大学学报2024，Vol.44Issue(4)：63-70,8.DOI:10.3969/j.issn.1673-9159.2024.04.008
广西北部湾海域不同地区红树蚬营养成分分析与品质评价
Nutritional Composition Analysis of Geloina coaxans from Various Regions of the Beibu Gulf,Guangxi
摘要
Abstract
[Objective]To understand the differences in nutritional composition of Geloina coaxans in different areas in the Beibu Gulf of Guangxi,to provide data for the breeding and selection breeding of G.coaxans.[Method]By means of biochemical analysis,the contents of conventional nutrients,amino acids and fatty acids were measured,and the quality evaluation was conducted.[Result]The findings indicate that in terms of conventional nutrients,the soft tissues of G.coaxans from Fangchenggang exhibited the highest water content,while those from Beihai had the highest levels of total sugar and ash(P<0.05),with crude fat content being lower than that of the clams from Qinzhou(P<0.05).Amino acid analysis revealed the presence of 15 different amino acids in the soft tissues of the clams from all three regions.The ratios of total essential amino acids mass to total amino acids mass(mEAA/mTAA)and total essential amino acids mass to total non-essential amino acids mass(mEAA/mNEAA)ranged from 27.55%to 28.22%and from 46.28%to 48.23%,respectively,which are relatively low but well-balanced.The flavor-enhancing amino acid content to total amino acid content ratio(mFAA/mTAA)was between 45.85%and 46.35%,and the essential amino acid index(EAAI)ranged from 53.19 to 86.13,with the soft tissues of the clams from Fangchenggang showing the highest levels of mTAA(P<0.05),mEAA(P<0.05),mFAA(P<0.05),and EAAI.In terms of fatty acid composition,a total of 26 fatty acids were identified,including 9 saturated fatty acids(SFA),7 monounsaturated fatty acids(MUFA),and 10 polyunsaturated fatty acids(PUFA),with higher levels of eicosapentaenoic acid(EPA)and docosahexaenoic acid(DHA)found in the soft tissues of the clams from Fangchenggang and Qinzhou.[Conclusion]The Beihai G.coaxans exhibit high protein and low fat nutrition,and may have better palatability,while the Fangchenggang G.coaxans group has a higher essential amino acid balance,which can better meet the needs of essential amino acids.The G.coaxans from Beihai,Fangchenggang,and Qinzhou in Guangxi are high in protein content,low in fat,and well-balanced in nutrition,making them high-quality shellfish.They contain a variety of amino acids with a reasonable composition ratio,including a rich content of essential and flavor-enhancing amino acids,which can be studied as a natural seasoning resource.They are rich in monounsaturated and polyunsaturated fatty acids,and can be used as a nutritional food ingredient rich in fatty acids.Among the three populations,the G.coaxans from Fangchenggang have a higher protein nutritional value and better amino acid balance,which can better meet the human body's demand for essential amino acids.关键词
红树蚬/营养成分/氨基酸/脂肪酸Key words
Geloina coaxans/nutritional composition/amino acids/fatty acid分类
农业科技引用本文复制引用
孙若鹏,杨宾兰,刘康,卢玉典,莫飞龙,严雪瑜,韦玲静..广西北部湾海域不同地区红树蚬营养成分分析与品质评价[J].广东海洋大学学报,2024,44(4):63-70,8.基金项目
2022年广西农业科技自筹经费项目(Z202259) （Z202259）
