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Application of powderly poly-unsaturated fatty acid to fish meal.

粉状多不饱和脂肪酸在鱼粉中的应用

基本信息

批准号：
07556032
负责人：
FURUTA Takeshi
金额：
$ 1.15万
依托单位：
Tottori University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

项目摘要

We have proposed a novel method for complexing of the docohexaenoic triyglyceride oil (DHA oil) or the omega-3 polyunsaturated fatty acids (PUFA) easter with cyclodextrin (CD) as dry powders by a twin-screw kneader. The oxidation rates of the powders were inverstigated on the basis of the reaction engineeing. Further, the inclusion complex powder of DHA oil was employed in the preparation of fish meal as a functional sea food paste. The results are as follows :1. The oxidative reaction kinetics of the n-3 liquid PUFA esters exhibited two kinds of reaction modes ; the autocatalytic reaction and 1st order reaction, depending on the degree of oxidation. On the other hand, the oxidation of n-6 liquid PUFA progressed authocatalytically. Further, the DHA oil oxidized according to 0th order reaction kinetics.2. The molar ratio (inclusion fraction) of PUFA ester or DHA oil included in CDs was measured by X-ray diffractogram, gas chromatography, and TLC method. The inclusion fraction of DHA oil was the same as DHA ester, independent of the kind of CD.NMR measurements showed that the ester part was included in the molecular cavity of CD.3. Both the powderly EPA eater and DHA triglyceride exhibited a marked resistance against autoxidation. It was also observed that carbohydrates could be used to further protect the PUFA cyclodextrin inclusion complexes from oxidation.4. The inclusion complexed powder exhibited a marked resistance against autoxidation, particularly when included in alpha-CD.The POV value of powdery DHA oil in fish meal paste remained less than 30 for 20 days without any antioxidants at 4ﾟC.

我们提出了一种新的方法，用于络合的二十二碳六烯酸甘油三酯油（DHA油）或ω-3多不饱和脂肪酸（PUFA）酯与环糊精（CD）作为干粉的双螺杆捏合机。在反应工程的基础上，研究了粉末的氧化速率。此外，DHA油的包合物粉末用于制备鱼粉作为功能性海产品糊。研究结果如下：1. n-3型液体PUFA酯的氧化反应动力学表现出两种反应模式：自催化反应和一级反应，取决于氧化程度。另一方面，n-6液体PUFA的氧化进行自催化。DHA油的氧化符合0级反应动力学.通过X射线衍射图、气相色谱法和TLC法测定CD中PUFA酯或DHA油的摩尔比（包合分数）。DHA油的包合部分与DHA酯的包合部分相同，与CD的种类无关。NMR测量表明，酯部分被包含在CD的分子空腔中。粉末状的EPA食用者和DHA甘油三酯都表现出明显的抗自氧化性。研究还发现，碳水化合物可以进一步保护PUFA环糊精包合物不被氧化.包合物复合粉末表现出显著的抗自氧化性，特别是当包含在α-CD中时。在4 ℃下，在没有任何抗氧化剂的情况下，鱼粉糊中粉末DHA油的抗氧化值保持小于30达20天。