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1.
Guillaume Mairesse Marielle Thomas Jean-Noël Gardeur Jean Brun-Bellut 《Aquaculture (Amsterdam, Netherlands)》2007,262(1):86-94
The ante mortem determinism of the quality components in fish is multivariate. Among the various influencing factors, the effects of (i) rearing biomass, (ii) dietary features and (iii) domestication process on the technological and nutritional variables in perch Perca fluviatilis here were studied using two-levels fractional factorial design 24-1 (resolution IV). This work allowed identifying two main factors, i.e. domestication and diet composition, which influence both technological and nutritional variables. Domestication was the parameter showing the greatest effect on both filleting yield (FY) and total saturated fatty acids (SFA) content, whereas diet composition chiefly influenced viscerosomatic index (VSI) and total poly- and mono-unsaturated fatty acids (PUFA and MUFA) contents. Domesticated fish exhibited higher FY (42.8%) and total SFA (25.1% of total fatty acids or FA) content than wild fish (FY = 40.1%, total SFA = 22.9%). Concerning the effect of food composition, diet including only fish oil as lipid source (FO) induced higher VSI than diet including vegetable oil (FV) VSI = 8.8% vs 7.4%, respectively). Moreover, FV diet induced higher n-6 PUFA but lower n-3 PUFA contents in fillets than did the FO diet (total n-6 PUFA = 6.3% vs 5.4% and total n-3 PUFA = 52.6% vs 55.2% of total FA respectively). FV fish fillets had significantly higher total MUFA (17.7% of total FA) contents in muscle than FO fish (14.8%). Concerning this last variable, domestication played only a role in interaction with diet composition. With FO diet, no difference in total MUFA content between wild and domesticated perch was noticed. However, total MUFA content increased with FV diet and was significantly higher in fillets of wild fish (18.7% vs 16.6% of total FA for domesticated). No effect of either feeding rate or initial biomass on the body composition was noticed. In addition, perivisceral fat content was not influenced by any treatment. 相似文献
2.
Effect of dietary saturated and monounsaturated fatty acids in juvenile barramundi Lates calcarifer 
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下载免费PDF全文 Barramundi (Lates calcarifer), a catadromous teleost of commercial interest, perform well when fed a wide range of dietary oils. However, the range of alternative oils now being explored is typically rich in saturated and monounsaturated fatty acids (SFA and MUFA). In this study, the response of juvenile barramundi (47.0 g per fish initial weight) fed isolipidic and isoenergetic diets with 82 g kg?1 added oil was tested. The experimental test diets had a 2 : 1 or 1 : 2 ratio of SFA to MUFA (SFA‐D and MUFA‐D, respectively) compared to a control diet (CTRL‐D) fed for 8 weeks. The diets containing mostly olive oil (dietary MUFA‐D) and mostly refined palm oil (dietary SFA‐D) did not impact the growth performance or feed utilization parameters of the barramundi. The in vivo beta‐oxidation activity was consistent with the dietary fatty acid composition, with the most dominant FA being heavily beta‐oxidized. Together, the in vivo whole‐body mass balance of fatty acids showed that n‐3 long‐chain polyunsaturated fatty acids (LC‐PUFA) were most efficiently utilized in the SFA‐D‐ and MUFA‐D‐fed fish. This study provides evidence that additional dietary MUFA and SFA are suitable lipid classes for juvenile barramundi and they are both equally efficient at sparing LC‐PUFA from an oxidative fate. 相似文献
3.
J.Y. LI Z.L. GUO X.H. GAN D.L. WANG M.F. ZHANG Y.L. ZHAO 《Aquaculture Nutrition》2011,17(4):e853-e860
The effects of four dietary lipid sources (fish oil, peanut oil, soybean oil, pork lard) on growth and gonad maturation of pre‐adult female red claw crayfish, Cherax quadricarinatus, were evaluated. Performance was evaluated by weight gain, specific growth rate (SGR), survival, feed conversion ratio (FCR), gonadosomatic index (GSI), fatty acid composition, and vitellogenin (vg) gene expression. The proportion of saturated fatty acids (SFA), mono‐unsaturated fatty acids (MUFA), and poly‐unsaturated fatty acids (PUFA) in hepatopancreas varied as a result of lipid source, while differences in muscle were limited to MUFA levels. Vg expression and growth, but not GSI, differed significantly, with peak expression and optimal growth observed in red claws receiving the soybean oil diet. Conversely, diets high in EPA (20:5n3) and DHA (22:6n3) produced suboptimal results, suggesting that the importance of maturation diets with high EPA and DHA content may be exaggerated. As the dietary lipid requirements of growing and reproductively active red claw crayfish were satisfied by a plant oil that contained high levels of 18‐carbon unsaturated fatty acids, soybean oil may be an economic alternative to the expensive lipid‐fortified feed currently utilized by the aquaculture industry. 相似文献
4.
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
5.
Mahmood Naseri 《Journal Of Aquatic Food Product Technology》2013,22(1):48-58
Lipid changes during canning and 3-years storage of oil and brine canned sprat were studied. Thermal treatment during precooking and sterilization produced an increase in free fatty acid content. Secondary oxidation product showed a considerable increase in canned samples after storage time. A significant increase was found by comparing the fluorescence shift measured in both canned samples with cooked fish. The fluorescence compound in both filling media was increased after 3 years. Oil canning affected the sprat fatty acids composition. Results showed the amount of saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), and Σω3 significantly decreased in oil canned samples. However, the polyunsaturated fatty acids (PUFA) and Σω6 had the opposite behavior. The latter effect was more marked with increased storage time. Results showed the amount of SFA, MUFA, PUFA, and Σω3 did not alter in brine canned samples. After storage, the amount of MUFA and Σω3 decreased, and the content of SFA increased in brine canned samples. 相似文献
6.
Fatemeh Lavajoo Aliasghar Khanipour Alireza Mirzajani Arash Akbarzadeh 《Journal Of Aquatic Food Product Technology》2013,22(9):975-985
ABSTRACTThe proximate content, fatty acids composition, and nutritional quality index (NQI) of Macrobrachium nipponense at three habitats in the Anzali wetland in Iran were investigated as a potential source for human consumption. The highest amounts of protein, lipid, ash, and energy contents in muscle of M. nipponense were showed in autumn (non-reproductive season) (p < 0.05). The main monounsaturated fatty acids (MUFA) were oleic acid (C18:1 n9 C, C18:1 ω9 T) and palmitoleic acid (C16:1). Moreover, the main polyunsaturated fatty acids (PUFA) were docosahexaenoic acid (DHA, C22:6 n3), eicosapentaenoic acid (EPA, C20:5n3), arachidonic acid (ARA, C20:4 n6), linoleic acid (LA, C18:2 ω6), and α-linolenic acid (ALA, C18:3 n3). The predominant individual saturated fatty acid (SFA) was palmitic acid (0.07–13.4%), while oleic acid (14.7–26.3%), EPA (3.5–12.7%) and linoleic acid (0.04–14.9%) represented the most abundant individual MUFA and PUFA in M. nipponense. The highest mean value of EPA+DHA (14.0), n3/n6 (1.02), ΣMUFA/ΣSFA (1.05), ΣPUFA/ΣSFA (1.04), and EPA/DHA (3.8) ratios in M. nipponense was in autumn. The range of atherogenicity index (AI) and thrombogenicity index (TI) was much lower, from 0.42 to 0.6 and from 0.33 to 0.57, respectively, in terms of season. The results obtained in the present study show that M. nipponense is an excellent nutritional food source in the Anzali wetland. 相似文献
7.
黄颡鱼早期发育阶段受精卵和鱼体脂肪酸组成变化 总被引：11，自引：2，他引：9
研究了黄颡鱼受精卵孵化期间和仔鱼发育阶段脂肪含量和脂肪酸的组成变化规律.采用常规化学分析方法和气相色谱法对黄颡鱼从鱼卵受精开始至仔鱼孵化后未投饵的7 d内的脂肪含量和脂肪酸组成进行测定.结果表明,受精卵在整个孵化期间脂肪含量有下降趋势.受精卵中不饱和脂肪酸含量大于饱和脂肪酸含量.受精卵在整个孵化期间各种脂肪酸含量无明显变化.仔鱼孵化后,鱼体总脂肪含量急剧下降,总脂含量从0日龄的4.57%降低到7日龄的0.75%.仔鱼在饥饿期间鱼体脂肪酸组成发生明显变化,单不饱和脂肪酸含量下降最为明显,尤其是C18:1.仔鱼在饥饿期间,脂肪酸按n-9>n-6>n-3顺序被先后利用,黄颡鱼仔鱼发育阶段主要以单不饱和脂肪酸作为能量代谢基质,而C20:4n6(AA)和C22:6n3(DHA)优先于C20:5n3(EPA)被保存下来. 相似文献
8.
9.
Understanding the flow of fatty acids between trophic levels can provide important clues on prey–predator dynamics and nutritional requirements of the species. This study investigates the fatty acid flow between enrichment emulsions, Artemia nauplii and Hippocampus guttulatus juveniles, and evaluates the nutritional value of enriched and unenriched Artemia for newborn seahorses. The fatty acid profile of Artemia and seahorses generally reflected the dietary composition, but fatty acids were not linearly transferred between trophic levels. The incorporation of dietary fatty acids showed to be a more complex process involving dietary composition, predator metabolism and nutritional requirements. Artemia composition resulted from a dynamic balance between what was assimilated and metabolized by the nauplii during enrichment. Prey fatty acids were incorporated in seahorses, but HUFA, particularly DHA, were selectively retained to fulfil their high requirements. H. guttulatus newborns were not successfully reared on Artemia nauplii, not even on enriched Artemia, with low survival rates (15.0–26.7%) being observed in all feeding treatments. The high MUFA content and low DHA level of Artemia did not fulfil the high SFA and PUFA requirements of newborn juveniles, particularly their great DHA demands. Higher survivorship was obtained with enriched Artemia, but no differences were detected in juvenile growth. 相似文献
10.
Deyan Stratev Teodora Popova Georgi Zhelyazkov Ivan Vashin Lilko Dospatliev Elitsa Valkova 《Journal Of Aquatic Food Product Technology》2017,26(7):871-879
The study was designed to assess the seasonal variations in the quality and lipid profile of mussel meat (Mytilus galloprovincialis) harvested along the Bulgarian coast of the Black Sea. The trial period lasted from June to October, and the sampling was carried out in the area of Varna Bay. Technological quality of the mussels was determined by measuring the water holding capacity (WHC) and cooking and roasting losses. Proximate composition, total aerobic plate count, and fatty acid analysis were carried out. Technological parameters and nutritional quality of the mussel meat were strongly affected by the season. During the summer, the mussels had higher mass, meat content, and meat yield (p < 0.001) compared to the early autumn, which corresponds to the lowest protein content during this season. Lipid profile showed seasonal variations in both individual and total fatty acid amounts (p < 0.001). Saturated fatty acids (SFA) had the highest content in summer, while monounsaturated fatty acids (MUFA) decreased gradually until the autumn. The content of polyunsaturated fatty acids (PUFA) reached its peak in October, contributing to the most favorable values of the nutritional indices of lipids in the early autumn. 相似文献
11.
河川沙塘鳢胚胎、仔鱼发育过程中脂类含量及脂肪酸组成的变化 总被引：5，自引：1，他引：4
采用生物化学方法测定和分析了河川沙塘鳢(Odontobutis potamophila)胚胎、仔鱼发育过程中脂类的含量及脂肪酸的组成。结果显示,随着胚胎和仔鱼的发育,其总脂的含量呈下降趋势,饱和脂肪酸(SFA)的含量亦呈现出下降趋势,单不饱和脂肪酸(MUFA)的含量在胚胎期保持稳定、在仔鱼期下降,而多不饱和脂肪酸(PUFA)却呈现出不断增长的趋势。在整个胚胎和仔鱼发育过程中,平均含量最高的脂肪酸依次是C16∶0、C18∶1n-9、C18∶0、C16∶1、C22∶6n-3(DHA)和C20∶5n-3(EPA)。结果表明:河川沙塘鳢在胚胎和仔鱼发育过程中有消耗饱和脂肪酸和单不饱和脂肪酸,而保存n-3系列和n-6系列的高度不饱和脂肪酸的趋势,饱和脂肪酸被作为胚胎期能量代谢的主要来源,单不饱和脂肪酸被作为仔鱼期能量代谢的主要来源,而C18∶3n-3(亚麻酸)和C18∶2n-6(亚油酸)被用于合成DHA、EPA和C20∶4n-6(AA)。 相似文献
12.
石首鱼科鱼类小黄鱼（）是吕泗渔场重要的经济鱼种,为了解两者营养价值、摄食习性及食性转变,测定2018年秋季在吕泗渔场采集的46尾小黄鱼和36尾棘头梅童鱼脂肪酸组成,基于脂肪酸标记法进行食性分析。结果显示,小黄鱼和棘头梅童鱼PUFA/SFA比值、n-3/n-6比值在常见水产鱼类中较高,小黄鱼n-3/n-6比值与体长呈显著正相关（<0.01）。小黄鱼体长<70 mm时植物食性贡献较高（P<0.05）,体长≥100 mm时植物食性显著减少（<0.05）,小黄鱼（2.6~5.9）和棘头梅童鱼（2.6~3.3） DHA/EPA部分重合。研究表明,小黄鱼和棘头梅童鱼营养价值较高,大个体小黄鱼鱼油营养价值更高,小个体棘头梅童鱼则更有利于心血管健康。两者营养级部分重合,食性相似,都是随着体长增加植物食性减少,肉食食性增加且食性转变时的体长相近,因此,两者可能存在一定的食物竞争和生态位重合。 相似文献
13.
The aim of the present study was to determine the effects of natural antioxidant extract isolated from the shells of giant red shrimp (Aristaeomorpha foliacea) on the changes in fatty acid profile of anchovy (Engraulis encrasicolus) during refrigerated storage (2.7°C). Total antioxidant activity of shell extract was determined as 45.84%, total phenolic compound as 17.87 mg/100 g shell, and total carotenoid content in shell as 20.31 mg/100 g shell. Total saturated fatty acid (SFA), monounsaturated fatty acid (MUFA), and polyunsaturated fatty acid (PUFA) contents in the control group and the group with 0.1% shell extract addition were found to be affected by the duration of storage (p < 0.05). A percentage increase was determined in MUFA content, while decreases were observed in PUFA content. No statistically significant change was detected in SFA, MUFA, and PUFA contents of groups with added butylated hydroxytoluene (BHT) and 0.5% of shell extract (p > 0.05). It was concluded that the extract isolated from shrimp shells could be used during the cold storage of fish fillets instead of synthetic antioxidants. 相似文献
14.
Sahena Ferdosh Nik Norulaini Nik Ab Rahman Md. Jahurul Haque Akanda Kashif Ghafoor Mohd. Omar Ab Kadir 《Journal Of Aquatic Food Product Technology》2013,22(2):230-239
ABSTRACTFish oil was extracted and simultaneously collected into six fractions based on molecular weight and the chain length of triglycerides in terms of fatty acid constituents without splitting of the triglycerides, using supercritical carbon dioxide (SC-CO2) at optimized conditions of 40 MPa, 65°C, and a flow rate 3 mL min?1. In each type of fractionation, the first fraction (F1) was rich in saturated fatty acids (SFA; 52.57 to 61.26%), followed by monounsaturated fatty acids (MUFA; 22.17 to 23.22%) and polyunsaturated fatty acids (PUFA; (0.54 to 20.37%); the sixth fraction (F6) was rich in PUFA (48.93%), followed by MUFA (33.59%) and SFA (13.61%). It was obvious that short-chain fatty acids were extracted at an earlier fraction; therefore, the latter fractions were dominant in long-chain fatty acids, especially MUFA and PUFA. Thus, omega-3 fish oil (last three fractions) was successfully separated to be used as a value-added health product. 相似文献
15.
为了研究不同生长时期红螯螯虾(Cherax quadricarinatus)肌肉和肝胰腺内脂肪酸和氨基酸的动态变化,选取90 d (第二性征未发育)、140 d (第二性征发育成熟)和180 d (性腺发育成熟)的红螯螯虾,分别测定其肌肉和肝胰腺内氨基酸和脂肪酸的含量。结果显示,90 d红螯螯虾肌肉中的必需氨基酸总量显著高于其他2个时期(P<0.05);而红螯螯虾肝胰腺内必需氨基酸总量和非必需氨基酸总量均随着日龄增加而逐渐下降。比较不同生长时期肌肉中脂肪酸含量发现,随着日龄增长,饱和脂肪酸(SFA)含量呈下降趋势;而单不饱和脂肪酸(MUFA)含量呈先上升后下降的变化趋势,140 d含量最高[(25.69±0.42)%];多不饱和脂肪酸(PUFA)含量呈上升的变化趋势。肝胰腺中SFA含量在 3个生长时期内无显著性差异(P>0.05),MUFA含量呈先上升后下降的变化趋势,140 d含量最高[(37.44±0.59)%],而PUFA含量变化与MUFA正好相反。营养价值评估结果显示,180 d (可上市销售)的红螯螯虾肌肉内必需氨基酸指数(49.96%)高于联合国粮农组织/世界卫生组织(FAO/WHO)评分模式(31.50%)和全鸡蛋蛋白质模式(43.10%),是较为理想的优质食物蛋白源。由上可知,在不同生长时期,肌肉和肝胰腺中的氨基酸、脂肪酸的主要消耗不同,研究结果对了解不同生长时期红螯螯虾营养需求、开发红螯螯虾配合饲料提供了参考依据。 相似文献
16.
不同脂肪源对红螯光壳螯虾幼虾生长、消化酶活性及其肌肉生化组成的影响 总被引：3，自引：1，他引：2
通过在人工配合饲料中分别添加5%的花生油、猪油、鱼油和豆油作为主要脂肪源,以商业饲料为对照,进行8周饲喂实验,研究不同脂肪源对红螯光壳螯虾(Cherax quadricarinatus)幼虾生长、消化酶活性及其肌肉生化组成的影响。结果显示,不同脂肪源对红螯光壳螯虾幼虾的体长增长率和特定增长率影响不显著(P0.05);但增重率各组间存在显著性差异(P0.05),以豆油组最高,达到2332.93%,花生油组最低,为1839.50%;豆油组肝胰腺指数显著高于其他各组(P0.05),为0.75%。幼虾存活率以豆油组最高(P0.05),达到83.3%,鱼油组较低,仅为56.7%。不同脂肪源饲喂组的肝胰腺胃蛋白酶活力无显著差异(P0.05);脂肪酶活力花生油组显著高于其他实验组(P0.05),为1177.23U/g(prot);淀粉酶活力各组间差异显著(P0.05),由高到低依次为鱼油组、对照组、豆油组、猪油组、花生油组;纤维素酶活力以花生油组较高,为61.14U/(gprot()P0.05)。幼虾腹部肌肉中各种脂肪酸的含量明显受到饲料中脂肪酸种类和含量的影响,饱和脂肪酸含量猪油组显著高于其他组(P0.05);单不饱和脂肪酸以花生油组含量最高,豆油组最低;多不饱和脂肪酸则以豆油组含量最高(P0.05)。在各实验组中,豆油组红螯光壳螯虾幼体具有最高的体质量增长率和存活率,较高的肝胰腺指数和肝胰腺消化酶活力,豆油组幼虾腹部肌肉中多不饱和脂肪酸尤其是亚油酸和亚麻酸含量也较高。因此,以豆油作为主要脂肪源能够满足红螯光壳螯虾幼体的生长需要,获得较好的饲养效果,并降低饲料成本。 相似文献
17.
Prakash Sharma Vikas Kumar Amit Kumar Sinha Jayant Ranjan H. M. P. Kithsiri Gudipati Venkateshwarlu 《Fish physiology and biochemistry》2010,36(3):411-417
The proximate composition of the whole body and the fatty acid composition of the liver, muscle, eye and brain of wild and
cultured rohu (Labeo rohita) were analyzed. The cultured species was found to have significantly (P < 0.05) higher lipid contents than its wild counterpart. The saturated (SFA) and monounsaturated (MUFA) fatty acid contents
were significantly higher in the cultured species, whereas the n-6 and n-3 polyunsaturated fatty acid (PUFA) levels were higher
in the wild species. Fatty acids C16:0 and C18:1 n-9 were the principal fatty acids of the SFAs and MUFAs, respectively,
identified in the analyses. Docosahexaenoic acid, eicosapentaenoic acid, and arachidonic acid were the predominant PUFAs in
both groups, and all three were found to be present at significantly (P < 0.05) higher levels in the wild species. Erucic acid (C22:1 n-9), which was the predominant fatty acid (30.76%) in the
feed, was detected only at low levels in muscle (0.30%), liver (1.04%) and eye (1.28%) of cultured fish tissue. 相似文献
18.
Kar Soon Tan Hongkuan Zhang Hongxing Liu Dewei Cheng Ting Ye Hongyu Ma Shengkang Li Huaiping Zheng 《Aquaculture Research》2019,50(12):3776-3782
In the present study, hybrid and inbred oysters were produced by factorial hybridization between two closely related species, the Pacific oyster Crassostrea gigas and the Portuguese oyster C. angulata. Tissues samples were used for the analysis of total lipid content (TLC) and fatty acid composition (FAC). In general, FAC but not TLC in hybrid oysters was significantly different from inbred oysters. Hybrid oysters have significantly lower ∑SFA composition but higher ∑PUFA composition than inbred oysters, with heterosis for ∑SFA, ∑MUFA and ∑PUFA of ?6.03%, ?6.53% and 14.31% respectively. Moreover, hybrid oysters have significantly higher EPA + DHA content and n3/n6 PUFA ratio than inbred oysters, indicating higher lipid nutritional quality than inbred oysters. Among them, the hybrid ♀ C. gigas × ♂ C. angulata appears to be the most nutritious. These results indicated that the lipid nutritional quality of oysters can be improved by hybridization. 相似文献
19.
Bonnie Mulligan 《Journal Of Aquatic Food Product Technology》2013,22(1):47-57
In support of developing sustainable aquafeeds, production performance and fillet fatty acid profile were assessed in juvenile Nile tilapia (0.61 ± 0.0 g/fish mean ± SE) raised for 16 weeks on diets containing fish oil or 50:50 blends of fish and plant-derived lipids. Standard, low 18:3n-3, or saturated fatty acid (SFA)-enriched soybean oils, palm oil, or low 18:3n-3 canola oil may be used to partially spare fish oil in feeds for Nile tilapia without impairing production performance, though use of hydrogenated soybean oil appears to impair growth and conversion efficiency. Of the plant lipids evaluated, palm and SFA-enriched soybean oil appear to be the best alternatives in terms of maintaining fillet long-chain polyunsaturated fatty acid content and the nutritional value of tilapia fillets. 相似文献
20.
干燥方法及保存条件对小球藻粉脂肪酸含量和种类组成的影响 总被引：1，自引：0，他引：1
研究了低温烘干、真空冻干和微波干燥3种干燥方式对蛋白核小球藻粗脂肪、脂肪酸含量和种类组成的影响及不同保存条件下脂肪酸的变化规律。试验结果表明,低温烘干藻粉的粗脂肪含量明显低于真空冻干藻粉和微波干燥藻粉。3种干燥方式对小球藻脂肪酸含量无显著影响,但藻粉颜色明显不同。藻粉脂肪酸含量与鲜藻之间无显著差异。在小球藻粉保存过程中,脂肪酸种类组成保持不变。藻粉在常温(14.5～18.5℃)下保存半年、4℃下保存1年时,多不饱和脂肪酸含量显著减少,饱和脂肪酸和单不饱和脂肪酸含量显著增加。在-24℃下保存1年时,各脂肪酸含量无明显变化。 相似文献