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RISS 인기검색어
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- 저자 : 신효선 ( Joo Hong Yang (검색결과 6 건)
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신효선,양주홍,Shin, Hyo-Sun,Yang, Joo-Hong 한국식품과학회 1986 한국식품과학회지 Vol.18 No.2
우리나라에서 재배된 4품종의 멥쌀과 2품종의 찹쌀 중의 극성지방질의 조성에 대하여 비교 연구하였다. 멥쌀과 찹쌀 중의 당지방질의 주요성분은 esterified sterylglycosides, monogalactosyl diglycerides, steryl glycosides, digalactosyl diglycerides 및 cerebrosides 였으며, 이들 함량은 멥쌀과 찹쌀간에 유의적인 차이가 없었다. 멥쌀과 찹쌀 중의 인지방질의 주요성분은 Iysophosphatidyl cholines, phosphatidyl cholines, phosphatidyl inositols 및 phosphatidyl ethanolamines 이였다. 그러나 lysophosphatidyl cholines과 phosphatidyl cholines은 멥쌀이 찹쌀에서 보다 많이 함유되어 있었고. phosphatidyl ethanolamines 과 phosphatidyl inositols는 찹쌀이 멥쌀에서 보다 많이 함유되어 있었다. 멥쌀과 찹쌀의 당 및 인지방질 획분의 주요 지방산은 palmitic, linoleic 및 oleic acid였다. 그러나 당지방질 획분 중의 palmitic acid는 멥쌀이 찹쌀에서 보다 함량이 높았고, 인지방질 획분 중의 oleic 및 stearic acid는 멥쌀이 찹쌀에서보다 적었으나, linoleic acid는 멥쌀이 찹쌀에서 보다 많았다. The composition of glycolipids and phospholipids of milled rice grain were studied for four nonglutinous and two glutinous varieties grown in Korea. Main classes of the glycolipids were esterified sterylglycosides, monogalactosyl diglycerides, steryl glycosides, digalactosyl diglycerides and cerebrosides in both of nonglutinous and glutinous, and no differences in individual content of the classes between both varieties. Of the phospholipids, Iysophophatidyl cholines, phosphatidyl cholines, phosphatidyl ethanolamines, phosphatidyl inositols and phosphatidyl serines were the major components, comprising oveer 85% of this class, and smaller amounts of diphosphatidyl glycerols and phosphatidyl glycerols were present. There was significant differences individual content of the phospholipid classes between both varieties. The major fatty acids of glycolipids and phospholipids fractions were palmitic, linoleic and oleic acids in both of nonglutinous and glutinous varieties. But content of palmitic acid in glycolipids fraction and stearic, oleic and linoleic acids in phospholipids fraction showed significant differences between both varieties.
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상이한 조건에서 저장한 버터로부터 생성된 콜레스테롤 산화물의 확인
장영상,양주홍,신효선,Chang, Young-Sang,Yang, Joo-Hong,Shin, Hyo-Sun 한국식품과학회 1990 한국식품과학회지 Vol.22 No.7
The effect of storage conditions on the oxidative stability of cholesterol in butter was studied by identifing cholesterol oxides by TLC. Experimental variables for storage conditions were packaging(packaged and unpackaged), storage temperature(ambient and refrigerated), light source(dark, fluorescent and ultraviolet), and storage period(2, 4, 6, and 8 weeks). No cholesterol oxides were detected from packaged butter under all storage conditions. When unpackaged butter was stored under darkness at ambient and refrigerated temperatures, cholesterol oxides were not detected even after 6 weeks of storage, but small amounts of $7{\alpha}-and\;7{\beta}-hydroxycholesterols$ were detected after 8 weeks of storage. When unpackaged butter was stored under ultraviolet light at ambient temperature, $7{\alpha}-hydroxycholesterol,\;7{\beta}-hydroxycholesterol$ cholestane-triol, and cholesterol epoxide were detected after 2 weeks of storage, and when fluorescent light was used instead of ultraviolet light, the same species of cholesterol oxides were detected after 6 weeks of storage. 버터에 함유된 콜레스테롤의 산화안정성에 대한 저장조건의 영향을 연구하기 위하여 버터를 포장한 것과 포장하지 않은 것을 저온과 상온에서 암소와 광원(형광등 및 자외선등)으로 조사하면서 각각 일정기간 저장하는 동안 생성되는 콜레스테롤 산화물을 TLC에 의하여 분리 확인하였다. 포장한 버터를 상온과 저온의 암소에서, 같은 조건에서 형광등과 자외선등으로 조사하면서 각각 8주간 저장 하였을 경우 콜레스테롤 산화물은 검출되지 않았다. 또한, 포장하지 않은 버터를 상온과 저온의 암소에서 저장하였을 경우 6주까지는 콜레스테롤 산화물이 검출되지 않았으나 8주 후에는 미량의 $7{\alpha}$- 및 $7{\beta}-hydroxycholesterol$이 검출되었다. 그러나 포장하지 않은 버터를 상온에서 자외선등으로 조사하였을 때는 저장 2주에, 같은 조건에서 형광등으로 조사하였을 때는 저장 6주에 각각 $7{\alpha}-hydroxycholesterol,\;7{\beta}-hydroxycholesterol$, cholestane-triol, cholesterol epoxide가 검출되었으며, 그 생성량은 저장기간이 경과함에 따라 증가하는 경향이었다.
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양주홍,장영상,신효선 ( Joo Hong Yang,Yong Sang Chang,Hyo Sun Shin ) 한국유화학회 1987 한국응용과학기술학회지 Vol.4 No.2
A preliminary investigation was performed to evaluate the possibility of partially replacing palm oil and beef tallow by repeseed oil for frying oils of instant Ramyon manufacturing. The AOM stability of rapeseed oil was inferior than of palm oil, but was comparable to that of beef tallow. When rapeseed oil was blended with palm oil or beef tallow, the AOM stability of the blended oil was improved. As far as AOM stability is concerned, best results were obtained with a blending ratio of 3 part of rapeseed oil to 7 part of palm oil and a ratio of 4 part of rapeseed oil to 6 part of beef tallow. These blended rapesee oils was retarded the formation of conjugated dienes and polymers during heating. The antioxidative effects on the stabilities of AOM and thermal in blended rapeseed oils showed that TBHQ was superior to tocopherols and a mixture of BHA and BHT was inferior.
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