경기지역의 착유회수에 따른 초유의 이화학적 특성

• 발행기관: 한국축산식품학회
• 저자명: 정석근 함준상 김동훈 안종남 채현석 유영모 장애라 권일경 이승규
• 간행물 정보: 『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제29권 제4호, 445~456쪽, 전체 12쪽
• 주제분류: 농수해양 > 식품과학
• 파일형태: PDF
• 발행일자: 2009.10.31

영문 초록

Colostrum samples were collected from 36 dairy farms in Gyeonggi-do and one dairy farm in the National Institute of Animal Science (NIAS) for testing. Colostrum samples were analyzed for phisycochemicals (specific gravity, pH, titratable acidity), general components (fat, protein, lactose, total solid, solid non-fat (SNF)), fatty acids, amino acids, minerals, microflora, somatic cells, and Ig (Immunoglobulin). The first colostrum revealed the following data: fat contents were 6.16±2.39%, proteins were 14.78±4.30%, lactose 2.57±0.77%, total solid 24.28±4.36%, and SNF 18.12±4.08%; whereas the 2nd (or 12th) colostrum revealed 5.56±1.76% fat, 3.46±0.41% proteins, 4.19±0.43% lactose, 13.90±1.76% total solid, and 8.34±0.81% SNF. Also, the first colostrum revealed the contents of major amino acids as 0.89% aspartic acid, 0.71% threonine, 0.86% serine, 1.75% glutamic acid, 0.64% valine, 0.95% leucine, 0.83% lysine, and 0.95% proline, and those in the 10th colostrum were 0.25% aspartic acid, 0.15% threonine, 0.19% serine, 0.59% glutamic acid, 0.19% valine, 0.35% leucine, 0.31% lysine, and 0.34% proine. Major amino acid contents rapidly decreased as milking times increased. In the first colostrum, the following mineral contents were observed: there were 2,168 ppm in Ca, 1,959 ppm in P, 914 ppm in K, 761 ppm in Na, 287 ppm in Mg, 1.7 ppm in Fe, 14.3 ppm in Zn, and 1.0 ppm in Cu; while in the 10th colostrum, the following ppm contents were 1,389 in Ca, 1,323 in P, 838 in K, 427 in Na, 131 in Mg, 1.0 in Fe, 4.7 in Zn, and 1.3 in Cu. The mineral contents in a colostrum rapidly decreased as milking times increased.

키워드

colostrum milking time physicochemical characterization dairy farm