RAPID METHOD FOR DETERMINATION OF WAX IN SUNFLOWER-SEED OILS

被引：16

作者：

BRIMBERG, UI

WRETENSJO, IC

机构：

[1] Food Division, Process Laboratory, Tumba, Alfa-Laval AB

来源：

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 1979年 / 56卷 / 09期

关键词：

D O I：

10.1007/BF02909535

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A rapid estimate of wax content in sunflower seed oil may be obtained by heating the oil to 130 C and subsequent cooling in ice for 10 to 15 min. Microcrystalline waxes are then formed. They are quantified by measuring increased turbidity with a sensitive turbidity meter. Calibration is made with thoroughly dewaxed oil to which known amounts of wax are added, and the turbidity increase is determined after 10 minutes at 0 C. The method has been compared with modified cold test, comprising visual inspection after 24 hours at 0 C and after 5 days at 20 C. The rapid tubidimetric method is superior to cold test in predicting the tendency of oils to precipitate small amounts of wax after long-time storage. © 1979 The American Oil Chemists' Society.

引用

页码：857 / 860

页数：4

共 5 条

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[2] SOLVENT WINTERIZATION OF SUNFLOWER SEED OIL
MORRISON, WH
ROBERTSON, JA
[J]. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1975, 52 (05) : 148 - 150
[3] REMOVAL OF WAXES FROM SUNFLOWER SEED OIL BY MISCELLA REFINING AND WINTERIZATION
MORRISON, WH
THOMAS, JK
[J]. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1976, 53 (07) : 485 - 486
[4] Ostric-Matijasevic B., 1973, Revue Francaise des Corps Gras, V20, P5
[5] 1964, OFFICIAL TENTATIVE M, V1

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