期刊文献+

配合饲料囤养对雌性中华绒螯蟹滋味品质的影响 预览

Effects of Formula Feed Hoarding on the Taste Quality of Female Chinese Eriocheir sinensis
在线阅读 免费下载
收藏 分享 导出
摘要 以雌性中华绒螯蟹为研究对象,测定中华绒螯蟹囤养前后生物学指数、基本化学组成,游离氨基酸和呈味核苷酸,同时计算滋味强度值(TAV)和味精当量(EUC),并与囤养前的雌蟹进行比较,结合感官分析探究囤养对其滋味的影响。结果表明:中华绒螯蟹囤养后体重上升,可食部位指数增加,存活率高达100%;囤养后蟹体肉中的脂肪含量有所下降,而体肉中的蛋白质和水分,肝胰腺和性腺中的蛋白质、水分、脂肪含量上升;感官结果显示配合饲料囤养后蟹的鲜味和甜味均增加。游离氨基酸结果表明,经过配合饲料囤养后的中华绒螯蟹其体肉中游离氨基酸总量下降,肝胰腺及性腺中游离氨基酸总量显著增加(p<0.05)。其中,体肉中甜味氨基酸(SFA)、肝胰腺和性腺中鲜味氨基酸(UFA)和SFA显著增加(p<0.05),囤养提高了蟹的鲜度和甜度。囤养后变化较大的氨基酸有谷氨酸、脯氨酸、甘氨酸、丝氨酸、丙氨酸及精氨酸,且蟹在囤养后肝胰腺及性腺中TAV值大于囤养前,其中TAV>1的氨基酸种类增多,TAV值较高。呈味核苷酸的结果显示,囤养后蟹体肉中的核苷酸总量和EUC值下降,而肝胰腺和性腺中核苷酸总量和EUC显著增加(p<0.05),蟹的鲜味变化明显。因此,经过配合饲料囤养一个月的雌性中华绒螯蟹其滋味更佳。 Taking female Chinese Eriocheir sinensis as the research object,the biological index,basic chemical composition,contents of free amino acids and taste nucleotides of Chinese Eriocheir sinensis before and after hoarding were determined,taste activity value(TAV)and equivalent umami concentration(EUC)were calculated,and compared with the female crab before hoarding the effect of hoarding on taste was explored by sensory analysis. The results showed that the body weight of the Chinese Eriocheir sinensis increased after feeding,the index of edible parts increased,and the survival rate was as high as 100%. The fat content in the body meat decreased after the hoarding,while the protein and moisture in the body meat,the protein,moisture and fat content in the hepatopancreas and gonads increased;Sensory results showed an increase in the umami and sweetness of the crab after the hoarding. The results of free amino acid showed that the total amount of free amino acids in the body meat of Chinese Eriocheir sinensis after being fed with formulated dites decreased,and the total amount of free amino acids in hepatopancreas and gonads increased. Among them,the sweet amino acid(SFA)in the body meat,the umami amino acids(UFA)and SFA in the hepatopancreas and gonads increased significantly(p<0.05),and the hoarding improved the umami and sweetness of the crab. The amino acids which greatly changed after the hoaring were glutamic acid,proline,glycine,serine,alanine and arginine,and the TAV value of the crab in the hepatopancreas and gonads after hoarding was significantly higher than that before the hoarding,the types of amino acids with TAV>1 increased and the TAV values were higher. The results of taste nucleotides showed that the total nucleotide and EUC values in the crab meat after feeding decreased,while the total nucleotide and EUC in the hepatopancreas and gonads increased significantly(p<0.05),and the umami taste of the crab changed significantly. Therefore,the female Chinese Eriocheir sinensis bred for one month after the f
作者 彭静文 周纷 王锡昌 PENG Jing-wen;ZHOU Fen;WANG Xi-chang(College of Food Science and Technology,Shanghai Ocean University,Shanghai 201306,China)
出处 《食品工业科技》 CAS 北大核心 2019年第11期91-97,共7页 Science and Technology of Food Industry
基金 上海市现代农业产业技术体系(沪农科产字(2017)第4号)。
关键词 中华绒螯蟹 囤养 游离氨基酸 核苷酸 滋味 Eriocheir sinensis hoarding free amino acid nucleotide taste
作者简介 彭静文(1993-),女,硕士研究生,研究方向:食品营养与品质评价,E-mail:18221679167@163.como;通讯作者:王锡昌(1964-),男,博士,教授,研究方向:食品营养与品质评价,E-mail:xcwang@shou.edu.cn.
  • 相关文献

参考文献18

二级参考文献273

共引文献133

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈
新型冠状病毒肺炎防控与诊疗专栏