摘要
为更好地开发胶网藻(Dictyosphaerium sp.1A10)在食品及饲料方面的潜力,以胶网藻(Dictyosphaerium sp.1A10)为实验对象,分析了其营养成分和羟基自由基清除能力。结果显示:藻粉中含有丰富的多糖、油脂、灰分、粗纤维、蛋白质,分别占藻粉干重的19.15%、24.56%、12.43%、12.31%和18.55%,其能量为371 kcal;藻粉中含有较高的亚油酸和亚麻酸,质量分数分别为油脂的15.3%和8.5%;藻粉含18种氨基酸,含量为10.16%,其中8种必需氨基酸占3.2%,且氨基酸的比值系数分(SRCAA)较高;藻粉中还含有7种维生素,其中VB1、VB3、VB6、VA和VE的含量较高,分别为2.15 mg/100 g、6.25 mg/100 g、1.31 mg/100g、2.37 mg/100 g和5.28 mg/100 g;藻粉中矿物元素镁、钙、铁、钾含量较高,分别为3 517.26 mg/kg、813.27mg/kg、301.78 mg/kg和9 426.87 mg/kg。采用电子顺磁共振技术检测到胶网藻1A10对羟基自由基有较强的清除作用,自由基清除率达62.62%。胶网藻1A10具有开发成为食品和饲料的潜力。
In order to develop the potential of Dictyosphaerium sp. 1 A10 in food and feed,the nutrient components and hydroxyl radicals scavenging capacity of Dictyosphaerium sp. 1 A10 were analyzed. The results showed that Dictyosphaerium sp. 1 A10 was rich in carbohydrates（ 19. 15%）,grease（ 24. 56%）,ash（ 12. 43%）,fiber（ 12. 31%） and protein（ 18. 55%）. Simultaneously,the energy of Dictyosphaerium sp.1 A10 was 371 kcal. In addition,the contents of linoleic（ 15. 3%） and linolenic（ 8. 5%） among fatty acids were high,and there were 18 kinds of amino acids in Dictyosphaerium sp. 1 A10,which took up 10. 16% of dry microalgae. And the content of essential amino acids accounted for 3. 2% of that of total amino acid,which proved to be high in score of ratio coefficient of amino acid（ SRCAA）. Also 8 kinds of essential amino acids were detected which took up 3. 2% and were attested to be high in score of ratio coefficient of amino acid（ SRCAA）. Meanwhile,the contents of VB1（ 2. 15 mg/100 g）,VB3（ 6. 25 mg/100 g）,VB6（ 1. 31 mg/100 g）,VA（ 2. 37 mg/100 g） and VE（ 5. 28 mg/100 g） were the highest among the 7 kinds of vitamins detected. Besides,magnesium（ 3 517. 26 mg/kg）,calcium（ 813. 27 mg/kg）,iron（ 301. 78 mg/kg） and potassium（ 9 426. 87 mg/kg） were also the highest among mineral elements. In this study,electron paramagnetic resonance（ EPR） technique was used to investigate the scavenging effect on hydroxyl radicals of Dictyosphaerium sp. 1 A10,and the scavenging rate was 62. 62%. To conclude,Dictyosphaerium sp. 1 A10 has the potential of developing as food and feed. Furthermore,Dictyosphaerium sp. 1 A10 had a strong scavenging effect on hydroxyl radicals detected by electron paramagnetic resonance,and the scavenging rate was 62. 62%. Dictyosphaerium sp. 1 A10 has the potential of developing as food and feed.
作者
王盛林
赵震宇
刘平怀
罗宁
潘孝妍
WANG Shenglin;ZHAO Zhenyu;LIU Pinghuai;LUO Ning;PAN Xiaoyan(Department of Materials and Chemical Engineering, Hainan University, Haikou 570228, Hainan, China;Key Laboratory of Protection and Development Utilization of Tropical Crop Gevmplasm Resources （ Hainan University） , Ministry of Education, Haikou 570228, Hainan, China)
出处
《上海海洋大学学报》
CAS
CSCD
北大核心
2018年第2期196-205,共10页
Journal of Shanghai Ocean University
基金
国家科技型中小企业技术创新基金项目(13C26244604892)
海南省产学研一体化项目(CXY20150034)
海南省中药现代化科技专项(ZY201327)
国家科技支撑计划项目(2011BAD14B01)
海口市应用技术研究与开发项目(2017644)
