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1.
Proximate composition, amino acid, fatty acid composition, and contaminants (As, Cd, Hg, and Pb) of the kisslip cuttlefish Sepia lycidas were determined and compared with the recommendations and maximum allowed levels. The ratio of essential amino acids (EAA) to nonessential amino acids (NEAA) was 0.82. All of the amino acid scores were > 100, except for valine (93), and the highest essential amino acid score was obtained for tryptophan (327). The fatty acids profile was dominated by polyunsaturated fatty acids (PUFA; 45.01% of total fatty acids), and docosahexaenoic acid (DHA; 24.54% of total fatty acids) was the dominant fatty acid. S. lycidas was rich in n-3 PUFA, and the ratio of n-3/n-6 PUFA was 2.48. Regarding contaminants, As, Cd, and Pb concentrations in S. lycidas were 2.2, 0.28, and 0.02 mg kg?1, respectively. Moreover, Hg values were below the detection limit (0.01 mg kg?1).  相似文献   

2.
池塘低盐养殖点篮子鱼肌肉营养成分的分析与评价   总被引:2,自引:1,他引:1  
点篮子鱼(Siganus guttatus)在低盐池塘中养殖102 d后,对其营养成分及其品质进行了分析和评价。结果表明,点篮子鱼新鲜肌肉中水分、粗灰分、粗蛋白和粗脂肪的质量分数分别为(75.17±0.87)%、(0.60±0.08)%、(22.33±0.50)%和(1.96±0.13)%;其肌肉干样中共检出19种氨基酸,总量为(89.03±0.36)%,其中,必需氨基酸总量为(34.26±0.12)%,占总氨基酸含量的38.49%,半必需氨基酸总量为(7.39±0.10)%,非必需氨基酸总量为(46.50±0.48)%,必需氨基酸与非必需氨基酸的比值为73.68%。可见,低盐度养殖点篮子鱼的必需氨基酸构成比例符合联合国粮农组织/世界卫生组织(FAO/WHO)的标准。根据氨基酸品质评价,其第一限制性氨基酸为色氨酸,第二限制性氨基酸为缬氨酸,必需氨基酸指数为75.44。低盐度养殖的点篮子鱼肌肉干样中鲜味氨基酸总量为(33.97±0.32)%,占总氨基酸含量的38.15%。综合来看,低盐度养殖的点篮子鱼必需氨基酸营养组成合理,鲜味氨基酸含量丰富,是一种营养丰富、味道鲜美的理想养殖对象。  相似文献   

3.
本试验对察尔森水库细鳞斜颌鲴(Plagiognathops microlepis)肌肉营养成分进行了分析及评价。试验采用常规营养成分分析法对细鳞斜颌鲴肌肉一般营养成分、氨基酸组成、脂肪酸组成进行了测定。结果表明:细鳞斜颌鲴肌肉中水分含量为79.31%、粗蛋白含量为16.56%、粗脂肪含量为0.94%、灰分含量为1.13%、总糖含量为0.38%。细鳞斜颌鲴肌肉共检出18种氨基酸,其中必需氨基酸(EAA)8种,非必需氨基酸(NEAA)10种,总氨基酸(TAA)含量为16.28%,EAA含量为6.72%,NEAA含量为9.56%;EAA/TAA(41.29%)及EAA/NEAA(70.32%)均在FAO/WHO推荐值以上。氨基酸评分(AAS)和化学评分(CS)结果是第一限制性氨基酸均为色氨酸(Trp),而第二限制性氨基酸,AAS是苏氨酸(Thr),CS是苯丙氨酸+酪氨酸(Phe+Tyr)。细鳞斜颌鲴肌肉共检出21种脂肪酸,其中7种饱和脂肪酸(SFA)、3种单不饱和脂肪酸(MUFA)、11种多不饱和脂肪酸(PUFA),分别占脂肪酸总量的25.22%、22.02%、37.76%;C20∶5n3(EPA)含量为11.87%,C22∶6n3(DHA)含量为11.55%。从营养分析结果来看,细鳞斜颌鲴是一种营养价值极高的食用鱼类。  相似文献   

4.
Squid hydrolysates obtained by autolysis without addition of lactic acid at two different pH (5 and 7) and included at 25 and 50 g kg?1 in a commercial shrimp feed were evaluated. Shrimp fed on such diets were cultured under indoor and outdoor conditions. Diets containing both hydrolysates and included at both levels caused a higher feed consumption by shrimp. In general, shrimp fed on both hydrolysates, but particularly on that prepared at pH 7, exhibited similar or better production responses (survival, biomass, feed conversion ratio, specific growth rate) compared to those fed on diets without the inclusion of hydrolysates. Shrimp cultured outdoor showed a better growth performance compared to those cultured indoor. No significant differences were found regarding the proximate composition of shrimp of any treatment. Results suggest that the free amino acids provided by squid hydrolysates contributed to improve the feed consumption and growth performance of shrimp cultured under both indoor and outdoor conditions.  相似文献   

5.
裸盖鱼(Anoplopoma fimbria)肌肉的营养成分分析及评价   总被引:1,自引:0,他引:1       下载免费PDF全文
采用生化方法对裸盖鱼肌肉的营养成分进行了分析,并对其营养品质进行了评价.结果显示,裸盖鱼水分含量为69.92%,粗蛋白、粗脂肪、灰分和总糖含量分别占肌肉湿重16.48%、10.64%、1.69%和1.27%.裸盖鱼肌肉(干样)中含有17种氨基酸,总量为43.81%,其中必需氨基酸与总氨基酸的比值(WEAA/WTAA)为40.68%,必需氨基酸与非必需氨基酸的比值(WEAA/WNEAA)为81.74%,符合FAO/WHO 的理想模式;肌肉氨基酸的支/芳值(BCAA/AAA)为 2.51,接近人体的正常水平;鲜味氨基酸总量(FAA)为 16.94%,占氨基酸总量的 38.67%,高于我国北方主要海水养殖品种;第一限制性氨基酸为胱氨酸+蛋氨酸,必需氨基酸指数(EAAI)为76.35,属于氨基酸较为平衡的鱼类.裸盖鱼肌肉不饱和脂肪酸与饱和脂肪酸的比值(UFA/SFA)为 2.81,脂肪质量较高.此外裸盖鱼肌肉营养元素丰富,P和Zn含量较高,并富含VA、VB6和VB3.分析认为,裸盖鱼肌肉呈味氨基酸、不饱和脂肪酸、矿物质、维生素含量丰富,味道鲜美,具有较高的营养价值和保健作用.  相似文献   

6.
采用酸水解法测定野生江鳕(Lota lota)的肌肉氨基酸含量,分析其氨基酸的种类与比例,并对其营养成分进行评价。结果表明:江鳕肌肉中含有17种氨基酸,总含量为(72.43±1.16)%(干样),其中7种为人体必需氨基酸(EAA),总量为(29.82±0.57)%,占氨基酸总量的41.17%,其中必需氨基酸的组成比例与联合国粮农组织/世界卫生组织(FAO/WHO)的标准相符。江鳕的第一限制性氨基酸为蛋氨酸+胱氨酸,4种鲜味氨基酸(DAA)总量为(28.34±0.35)%(干样)。必需氨基酸指数(EAAI)为62.58。研究表明:江鳕含有丰富的氨基酸具有很高的营养价值和保健作用。  相似文献   

7.
刘晋士  卫育良  徐后国  朱永祥  梁萌青 《水产学报》2023,47(4):049611-049611
为探究大菱鲆对不同来源水解蛋白的利用效率,实验选取太平洋狭鳕和牛蛙下脚料为蛋白来源,分别制备水解鱼蛋白和水解牛蛙蛋白,以初始体重为(8.00±0.01) g的大菱鲆为研究对象,进行为期56 d的养殖实验。实验设2个对照组,正对照组(PC)鱼粉含量为35.0%,负对照组(NC)鱼粉含量为26.5%;设2个实验组,水解鱼组(FPH)为26.5%的鱼粉和8.0%的水解鱼蛋白,水解牛蛙组(BPH)为26.5%的鱼粉和9.5%的水解牛蛙蛋白。结果显示,FPH组的终末体重、增重率和特定生长率显著高于BPH组和NC组,与PC组无显著差异。摄食6 h后,食糜必需氨基酸中赖氨酸、精氨酸、苏氨酸和缬氨酸在BPH组的含量显著高于PC组;多数非必需氨基酸在BPH组含量最高,但无显著差异。质子偶联氨基酸转运载体PAT1和小肽转运载体PepT1的mRNA表达量分别在FPH组和BPH组都显著高于PC组和NC组;碱性氨基酸转运载体CAT1和y+L型氨基酸转运载体y+LAT2的mRNA表达量在各处理组中无显著差异。研究表明,在饲料中添加鳕和牛蛙蛋白水解物均能提高大菱鲆的生长性...  相似文献   

8.
采用常规生化分析方法对莱氏拟乌贼(Sepioteuthis lessoniana)肌肉的营养成分进行测定,并对其营养品质进行了分析与评价。结果显示,在肌肉湿样样品中水分、粗蛋白、粗脂肪、灰分和总糖的含量分别为76.10%、19.01%、1.20%、1.71%和1.98%。肌肉中共检测出18种氨基酸,占干样品的64.65%,氨基酸含量丰富;必需氨基酸(EAA)含量达到22.97%,与氨基酸总量(TAA)和非必需氨基酸(NEAA)的比值分别为35.53%和69.42%,氨基酸组成比例适宜;4种呈味氨基酸总量达25.02%,味道鲜美;第一限制性氨基酸为胱氨酸+蛋氨酸,必需氨基酸指数(EAAI)为68.02,氨基酸组成较为平衡;饱和脂肪酸(SFA)、单不饱和脂肪酸(MUFA)和多不饱和脂肪酸(PUFA)含量分别为43.02%、6.59%和42.39%,PUFA含量较高,其中,EPA+DHA的含量达32.64%,对人体有较高的保健价值;此外,莱氏拟乌贼肌肉中含有丰富的K、Zn、Se等矿物元素和B族维生素。本研究表明,莱氏拟乌贼肌肉的营养成分全面、营养价值高,是一种优质水产品。  相似文献   

9.
短须裂腹鱼营养成分分析与品质评价   总被引:1,自引:0,他引:1  
采用生化方法对短须裂腹鱼(Schizothorax wangchiachii)的常规营养成分、氨基酸和脂肪酸组成进行了分析,并对其营养品质进行了评价,为其养殖生产及饲料配制提供理论依据。2015年5月采集当年人工繁殖的短须裂腹鱼幼鱼200尾作为实验材料,体长为5~8 cm,体重为3.12~4.51 g,分成4个混合样本进行检测分析。结果表明,短须裂腹鱼鲜样中水分、粗蛋白、粗脂肪和粗灰分分别为(70.66±1.50)%、(14.24±0.40)%、(12.83±1.44)%和(2.05±0.11)%。共检测出17种氨基酸,总量为(10.88±0.21)%,必需氨基酸总量(5.05±0.11)%,非必需氨基酸总量为(5.83±0.10)%;依据氨基酸评分(AAS),短须裂腹鱼的第一限制性氨基酸为缬氨酸(Val),第二限制性氨基酸为异亮氨酸(Ile);依据化学评分,第一限制性氨基酸为蛋氨酸+胱氨酸(Met+Cys),第二限制性氨基酸为苯丙氨酸+酪氨酸(Phe+Tyr)。共检测出17种脂肪酸,总量为(84.39±7.20)mg/100 g,饱和脂肪酸、单不饱和脂肪酸以及多不饱和脂肪酸分别为(24.95±2.22)mg/100 g、(38.69±3.29)mg/100 g、(20.22±1.60)mg/100 g。综合分析认为短须裂腹鱼是具有食用价值和资源开发潜力。  相似文献   

10.
对栅藻B38的营养成分进行了全面分析,结果表明,栅藻藻粉中油脂含量14%,总糖含量13.86%,粗纤维3.52%,灰分4.28%,蛋白质49.0%,为高蛋白质类微藻。栅藻B38中含有23种脂肪酸。栅藻B38中氨基酸总量为852.58 mg/g,必需氨基酸占总氨基酸的47.45%,必需氨基酸指数为85.42%。两种模式的氨基酸比值系数分较接近,均在65以上;待评价物质的氨基酸品质与模式蛋白的贴近度接近1(0.93和0.88)。栅藻B38中共检测出23种矿物质元素,其中钠、钾、钙、镁、铁、铝含量较为丰富。重金属的含量均低于国家食品卫生标准。栅藻B38中维生素B3(106.02 mg/100 g)和维生素E(540.77 mg/100 g)的量较高。综上,栅藻B38的营养较丰富,可以进一步开发利用。  相似文献   

11.
养殖博氏鱼芒肉营养成分的分析及评价   总被引:2,自引:1,他引:1  
丁月  陶宁萍  魏志宇  刘源 《水产学报》2011,35(12):1857-1864
采用国家标准方法测定湖北英山博氏(鱼芒)肉一般营养成分、氨基酸、脂肪酸和矿物质元素含量.结果表明,博氏(鱼芒)肉中水分、粗蛋白、粗脂肪和粗灰分的含量分别为75.36%±1.07%、17.90%±0.43%、5.13%±0.18%和0.98%±0.09%;18种氨基酸总量为(69.01±0.07) g/100 g(干重),其中5种鲜味氨基酸占氨基酸总量的41.70%,8种人体必需氨基酸占氨基酸总量的48.68%,必需氨基酸与非必需氨基酸比值为95.06%;粗脂肪中含24种脂肪酸,油酸含量38.41%±0.29%最高,单不饱和脂肪酸含量占脂肪酸总量的42.68%±0.10%,n-6多不饱和脂肪酸与n-3多不饱和脂肪酸的比值为1.48;矿物质元素中钾含量最高,为(1 118.51±30.67) mg/100 g(干重),微量元素中,铁、锌含量最高,分别为(1.19±0.10)和(1.18±0.05)mg/100 g(干重).与其它鱼类相比,博氏(鱼芒)肉蛋白质质量较高,氨基酸组成比例均衡,富含n-3多不饱和脂肪酸,矿物质元素含量丰富,有较高的营养价值.  相似文献   

12.
Amino acid composition and heavy metal concentration were examined in organic and conventional Chinese shrimp Penaeus chinensis production systems during the production cycle. The crude protein and total amino acid contents for organic shrimp samples were 0.932 and 0.945 mg/g d.w., while they were 0.849 and 0.826 mg/g d.w., respectively, for conventionally produced samples. The ratios of essential amino acids to nonessential amino acids in organic and conventional cultured shrimp were 0.58 and 0.63, respectively. Shrimp samples from the conventional system were significantly richer in Cu (2.28 vs. 1.53 mg kg−1), Pb (0.13 vs. 0.08 mg kg−1), Cd (0.09 vs. 0.04 mg kg−1), and Zn (9.94 vs. 8.42 mg kg−1) when compared with those obtained from the organic system. It is concluded that organic shrimp production systems can produce comparable growth and nutritional quality benefits.  相似文献   

13.
通过对西伯利亚鲟(Acipenser baeri)、施氏鲟(Acipenser schirenckii)及其杂交种(西伯利亚鲟♀×施氏鲟♂,Acipenser baerii♀×A.sschrenckii♂)的肌肉常规营养成分进行测定,同时进行氨基酸和脂肪酸的测定,从而对3种鲟鱼营养品质进行分析评价.结果显示,除水分含量...  相似文献   

14.
中小规格养殖瓯江彩鲤肌肉营养成分的比较分析   总被引:2,自引:0,他引:2  
为了解不同规格瓯江彩鲤的肉质差异和营养特点,采用常规方法,对平均体重53.5、170.8和308.5g的3组稻田养殖瓯江彩鲤进行含肉率、脏体比、营养成分、氨基酸和脂肪酸组成进行了分析比较。结果表明:较大规格(Ⅲ组)的瓯江彩鲤含肉率54.76%,显著高于较小规格的鱼I组(40.99%)。3组鱼肌肉中含人体必需氨基酸占总氨基酸的比例均为44%,与非必需氨基酸比值为91%~95%;第一限制性氨基酸均为缬氨酸;Ⅲ组鱼PUFA含量较高,而I组鱼EPA和DHA含量较大;4种鲜味氨基酸总量均超过29%。  相似文献   

15.
对黑斑蛙肌肉一般营养成分、氨基酸、脂肪酸和矿物元素进行测定,旨在比较分析野生与养殖黑斑蛙肌肉的营养品质。试验结果表明,养殖黑斑蛙肌肉粗蛋白与粗脂肪含量高于野生黑斑蛙,水分含量则低于野生黑斑蛙,但两者间差异不显著( P >0.05);野生与养殖黑斑蛙肌肉除谷氨酸和酪氨酸外的氨基酸含量均无显著性差异( P >0.05);野生黑斑蛙肌肉的总氨基酸、非必需氨基酸和鲜味氨基酸含量高于养殖黑斑蛙。根据氨基酸评分和化学评分结果,野生和养殖黑斑蛙肌肉中赖氨酸含量相对较高,第一限制性氨基酸均为蛋氨酸+胱氨酸,必需氨基酸指数分别为70.25和72.42。野生黑斑蛙饱和脂肪酸含量显著高于养殖黑斑蛙( P <0.05),而养殖黑斑蛙肌肉的多不饱和脂肪酸、必需脂肪酸、二十碳五烯酸、二十二碳六烯酸、n-3和n-6多不饱和脂肪酸含量均高于野生黑斑蛙( P >0.05)。野生与养殖黑斑蛙肌肉14种矿物元素中,锌、铝和硒含量有显著差异( P <0.05),重金属元素(砷、镉、铅)含量均在限量范围以内。由此可知,养殖黑斑蛙营养组成价值接近于野生黑斑蛙。  相似文献   

16.
Protein hydrolysates were prepared from yellowfin tuna viscera using Alcalase®. Response surface methodology (RSM) was applied to study the effect of independent variables, enzyme activity, temperature, and time on the protein recovery (PR) as the response. The coefficient of determination (r2 = 98%) was satisfactory, and the lack of fit test showed a non-significant value for the PR model equation, indicating that the regression equation was adequate for predicting the PR under tested combinations of values. Enzyme activity at 79.9 AU/kg protein, temperature at 59.9°C, and the time of 105 min were found to be the optimum conditions to reach the highest PR (85%). Considerable soluble protein was released with increasing degree of hydrolysis (DH). The yellowfin tuna visceral hydrolysates' amino acids profiles showed high essential amino acids content, although lysine, methionine, and phenylalanine were limited. In addition, the results showed that with increasing hydrolysis time, the amino acids increased. Yellowfin tuna visceral hydrolysates were rich in flavor amino acids which can be used as a taste enhancer.  相似文献   

17.
ABSTRACT

Effects of various proteases were obvious on the amino acid composition, antioxidant activities, and functional properties of enzymatic hydrolysates prepared from sea cucumber viscera (SCV). Alcalase, trypsin, and flavourzyme conferred better antioxidant activities on hydrolysates and endowed them with a higher degree of hydrolysis, coming to 19.08, 32.38, and 15.94%, respectively. For functional properties, neutrase- and flavourzyme-derived hydrolysates showed better foaming properties. Amino acid composition suggested that papain, neutrase, alcalase, and bromelain granted the hydrolysate’s high nutritional quality. The results indicated that SCV hydrolysates could be used in food systems to impart desirable characteristics to products.  相似文献   

18.
Muscle proximate composition, amino acid profiles, fatty acid compositions and selected minerals of wild, pond and factory cultured Japanese flounder adults were compared in this study to elucidate their nutritive values and dietary nutrition requirements. Wild and pond cultured Japanese flounder flesh had higher crude proteins, but crude lipid contents of factory cultured fish were 3.8~4.0 fold greater. Major amino acids in Japanese flounder were aspartic acid, glutamic acid and lysine. Wild fish had higher levels of total amino acids, essential amino acids, nonessential amino acids and half‐essential amino acids and the contents in pond cultured samples were similar. Arachidonic acids (ARA), eicosapentaenoic acids (EPA), docosahexaenoic acids (DHA), polyunsaturated fatty acids (PUFA), DHA + EPA and n–3 PUFA in wild Japanese flounder were significantly higher than that in factory cultured fish, whereas fatty acid levels were close between pond cultured and wild fish. Japanese flounder were rich in zinc, iron and selenium, but poor in copper, chromium and nickel. Results indicated wild Japanese flounder had higher nutritional value and better meat quality, but the nutritional compositions of pond cultured fish were close to wild Japanese flounder, which suggested that pond culture of Japanese flounder offers broad application prospects.  相似文献   

19.
Previous studies have indicated that natural zooplankton, the natural prey organisms of marine fish larvae, is superior to enriched Artemia spp. nauplii in supporting survival, growth and normal development of pigmentation and eye migration in Atlantic halibut larvae. The present study was designed to compare the amino acid dynamics in copepods harvested from a natural lagoon with that of enriched Artemia franciscana nauplii. The natural zooplankton in the present study was dominated by Temora longicornis, but varied in its developmental stage composition, apparent nutritional quality, amount and availability. The protein content in natural zooplankton varied from 31% to 54% of dry mass (DM) compared to 31% in enriched Artemia nauplii. The amount of free amino acids (FAA) in relation to protein was 14% in enriched Artemia nauplii and varied between 16% and 27% in zooplankton in two consecutive seasons. The FAA composition of zooplankton in 1996 was unaffected by stage and season, and showed a species-specific pattern. In response to starvation, two patterns in the amino acid dynamics of copepods were found. The first, exhibited by the major nonessential amino acids (NEAA), showed a continuous reduction in individual amount, while the second pattern, exhibited by the minor nonessential amino acids and all the essential FAA, had an initial increase followed by a reduction. It is suggested that the protein amount in DHA Selco™ (INVE)-enriched Artemia nauplii is too low in order to maximise the growth potential of some marine fish larvae as cod and halibut.  相似文献   

20.
中华倒刺鲃肌肉营养成分与品质的评价   总被引:47,自引:2,他引:47       下载免费PDF全文
利用常规肌肉营养测试方法测定分析5尾中华倒刺鲃(Spinibarbus sinensis)的肌肉营养成分。结果表明,中华倒刺鲃肌肉(鲜样)中粗蛋白质量分数19.22%,粗脂肪质量分数1.96%,水分质量分数77.0%,灰分质量分数1.62%,碳水化合物质量分数0.18%。肌肉中含有17种氨基酸,总量为73.61%(质量分数,干样),其中7种人体必需氨基酸(不包括色氨酸)总量是32.26%,占氨基酸总量的43.83%;其必需氨基酸的构成比例基本符合FAO/WHO的标准。中华倒刺鲃的限制性氨基酸为(蛋氨酸 胱氨酸)、缬氨酸和(苯丙氨酸 酪氨酸),必需氨基酸指数(EAAI)为71.34,4种鲜味氨基酸总质量分数为24.22%(干样)。脂肪酸中EPA与DHA质量分数分别为0.87%、3.08%,比其他经济鱼类均高,微量元素比值合理,表明中华倒刺鲃有较高的食用价值与保健作用。  相似文献   

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