• Korean Journal of Agricultural Science
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• v.6 no.2
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• pp.158-165
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• 1979

These studies were carried out to investigate the freshness and bacteria of ultra high temperature processed market milks which treated and distributed in four districts: Kwangju, Daejon, Sungwhan and Seoul, and to elucidate their keeping qualities when stored in refrigerator and at room temperature. Various samples taken from the four districts were tested and the results obtained were as follows. 1. Samples from three districts retained acidities fit for standard for 9 days and those from one district for 5 days when stored at $4^{\circ}C$. However, the periods were shortened to 1 day for samples of the three districts and to same day for those of one district when stored at $20^{\circ}C$. 2. Negative results were obtained from alcohol and boiling tests upto 10 days for samples of the three districts and upto 6 to 7 days for those of one district when stored at $4^{\circ}C$. But positive results were recorded after 2 days for samples of the three districts and after 1 day for those of one district when stored at $20^{\circ}C$. 3. Total viable number of organisms did not exceed the standard limit upto 10 days for sample of one district, up to 7 days for those of two districts and upto 2 days for those of the other when stored at $4^{\circ}C$. But in case of storage at $20^{\circ}C$, samples of one district maintained viable titre below the limit for 1 day and samples of three districts for same day. 4. Initial number of psychrophilic were $4.8{\times}10^3/ml$ on an average. This titre was increased to $6.4{\times}10^7/ml$ gradually during 10 days when stored at $4^{\circ}C$, and to $5.2{\times}10^7/ml$ during 2 days. when stored at $20^{\circ}C$. 5. Number of thermoduric bacteria were below $10^2/ml$ for 10 days in samples of three districts and for 6 days in those of the other when stored at $4^{\circ}C$. However, in case of storage at $20^{\circ}C$, the titre exceeded $10^2/ml$ after 1 day in samples of three districts. 6. No coliform bacteria were detected in all samples from the four districts.

• 월간낙농육우
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• v.36 no.5
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• pp.97-100
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• 2016

"낙농 1세대들이 고품질 백색 시유 생산에 집중했다면 2세 후계자인 젊은 낙농인은 시유를 넘어 소비자들에게 선택을 받은 수 있는 유가공 제품을 만들어야 한다고 생각합니다." 충남 부여군 세도면에 위치한 중원목장(목장주 이중화)의 후계자 이석원 씨(밀크아트 대표, 37)는 대중의 입맛에 맞는 위생적이고 건강한 유제품을 만들어 소비자들에게 인정받는 것이야 말로 위기에 처한 국내 낙농산업의 돌파구가 될 수 있단 생각에, 천연 요구르트 제조 판매에 많은 노력을 기울이고 있다. 판매루트 등 여러 가지 이유로 목장형유가공이 수익으로 연결되기 쉽지 않은 국내 낙농업계에서 '목장형유가공'이라는 블루오션에 도전하고 있는 이석원 씨를 만나봤다.

• Journal of the Korean Applied Science and Technology
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• v.2 no.1
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• pp.25-31
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• 1985

The fatty acid composition acyl carbon atoms and species of triglycerides from human mature milk, infant formulas (modified milk formula) and market milk were determined by argentation thin-lager and gas-liquid chromatography. Short-chain fatty acids which sere not detected in human milk were present in very small amount in modified milk formula and market milk. The levels for 5:0, 22:0 and 24:0 in modified milk formula and for 8:0, 10:0, 18:0, 22:0 and 24:0 in market milk were significantly higher than those in human milk. The levels for 10:0 and 14:0 in modified milk formula and for 12:0 and 20:0 in market milk were significantly lower than those in human milk. The relative percent of $18:2{\omega}6$ in human milk, modified milk formula and market milk were on average 12.0, 15.0 and 3.8 percents respectively. Human milk contained significantly higher proportions of both ${\omega}6-and{\omega}3-derived$ long chain polyunsaturated fatty acids than modified milk formula and market milk. The major triglycerides of human milk, modified milk formula and market milk made by the glycerides with 44-52, 50-54 and 36-40 acyl carbon atoms, respectively. There were significant differences in levels for total number of acyl carbon atoms per glycerid molecule of human milk, modified milk formula and market milk. In comparison with human milk, modified milk formula and market milk showed significantly higher levels for saturates but significantly lower levels for trienes to polyenes.

• 월간낙농육우
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• v.30 no.3
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• pp.82-116
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• 2010

최근 정부의 글로벌 자유무역협정(FTA) 네트워크의 구축방침에 따라 대부분의 낙농선진국과의 FTA 협상이 동시다발적으로 이루어지고 있다. 그런 가운데 시유무역이 가능하며, 세계 최대시장이라 할 수 있는 중국과의 유제품무역이 지니는 의의는 매우 크다. 이는 한 중 FTA가 타결될 경우 양국 간의 지리적 여건 및 생산비격차를 감안할 때 시유를 포함한 유제품의 쌍방무역의 가능성이 매우 높기 때문이다. 물론 당장은 중국의 공급 부족 및 2008년의 멜라민사건 등으로 인해 국내산 시유를 포함한 국산유제품의 대 중국수출의 가능성이 높다. 그러나 중장기적으로는 멜라민사건 당시 확인된 것과 같이 저가의 중국산 유제품의 수입가능성 또한 배제할 수 없다. 그 경우 국내 소비자의 중국산 유제품의 안전성에 대한 불신에 따른 이른바 '국산프리미엄'이 작용할 수 있다. 그뿐 아니라 멜라민사건을 계기로 중국 정부는 중국산 유제품을 포함한 식품안전성확보를 위한 제도적장치를 강화하고 있다. 이 같은 점을 감안할 때 한 중 FTA에 대비하여 국산유제품의 대 중국 수출과 함께 저가의 중국산 유제품의 수입가능성에 대해서도 대비할 필요가 있다. 본 연구는 상기와 같은 문제의식 하에서 최근 중국의 우유수급, 중국의 낙농정책, FTA 추진상황, 한 중 유제품무역의 실태, 한 중 FTA에 따른 국내 낙농업에의 영향 및 대응방안 등에 대해 검토하는 것을 목적으로 한다.

• 월간낙농육우
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• s.144
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• pp.56-59
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• 1994

• 월간낙농육우
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• s.157
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• pp.55-65
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• 1995

• 우유
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• s.47 winter
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• pp.11-19
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• 1991

• 우유
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• s.51 winter
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• pp.5-12
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• 1992

• 월간낙농육우
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• s.92
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• pp.37-40
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• 1989

• Journal of the Korean Applied Science and Technology
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• v.1 no.1
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• pp.49-55
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• 1984

The lipid and fatty acid compositions and vitamin E content were analyzed in 48 human mature milk, 3 infant formulas (modified milk powder) and 8 market milk samples. The total lipid content in modified milk powder was similar those in human milk and market milk when total solids content of modified milk powder was corrected to that of human milk. In comparison with human milk, modified milk powder contained a lower proportion of triglycerides and higher proportions of phospholipids, free fatty acids and cholesterol esters. The ratios of phospholipids/triglycerides, total cholesterol / triglycerides and total tocopherol/total lipids in modified milk powder were significantly higher than those in human milk and market milk. The American recommendation for linoleic acid (0.7 IU/g) could be satisfied with human milk, modified milk powder and market milk. The proportions of short- and medium-chain even numbered saturates were higher and the proportions of long-chain derivatives of linoleic (${\omega}6$ series) and linolenic (${\omega}3$ series)acids were lower in modified milk powder and market milk than in human milk. It is concluded that in view of their levels in breast milk, the polyenoic derivatives of linoleic and linolenic acids must be taken into account when assessing infant foods.