油化学
Online ISSN : 1884-2003
ISSN-L : 0513-398X
国産豚脂のボーマー数および高ボーマー数値の検討
ボーマー数について (第2報)
今村 正男新谷 〓高木 嘉寿子松本 太郎
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1965 年 14 巻 5 号 p. 234-237

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Bomer numbers were measured by acetone method with 16 samples of lards obtained from abdomen, rib, back and bone; in these samples, No.1No.12 were obtained from Middle Yorkshire and No.13No.16 from Berkshire breed.
1) Bomer numbers of the abdominal fats were comparatively high and the mean value is 76.41, and were followed by the values of fats from rib, back and bone being 75.83, 74.91 and 74.96 in their mean values respectively. The fats of higher Bomer numbers seemed to afford the larger yield of precipitated glyceride.
2) There were almost no differences between the hog breeds, but Bomer numbers of Middle Yorkshire breeds showed a little higher values. Slight differences in Bomer numbers were recognized between the places of breeding, and the lards obtained from Gumma and Saitama Prefectures showed a little higher values than those from Ibaragi and Kagoshima Prefectures.
3) Six samples showed high Bomer numbers above 77, and the highest value in them is 78.8 which was obtained from No.11 sample of abdominal fat. The glyceride precipitated from this sample contained about 15% of mono-unsaturated glyceride and about 24% of stearodipalmitin which was calculated from the content of palmitic acid. Accordingly, it is considered that the difference between the melting point of the precipitated glyceride and that of the mixed fatty acids had increased.

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