发布求助
文献互助 智能选刊 最新文献

Journal of milk and food technology最新文献

筛选
英文 中文
I. GROWTH AND ACID PRODUCTION: GROWTH AND ACTIVITY OF LACTIC-ACID BACTERIA IN SOYMILK 1 .生长与产酸:豆浆中乳酸菌的生长与活性
Journal of milk and food technology Pub Date : 1971-01-01 DOI: 10.4315/0022-2747-34.1.30
A. Angeles, E. H. Marth
{"title":"I. GROWTH AND ACID PRODUCTION: GROWTH AND ACTIVITY OF LACTIC-ACID BACTERIA IN SOYMILK","authors":"A. Angeles, E. H. Marth","doi":"10.4315/0022-2747-34.1.30","DOIUrl":"https://doi.org/10.4315/0022-2747-34.1.30","url":null,"abstract":"Soymilk with a protein content similar to that of cow's milk was prepared from soybeans (variety Chippewa 64). Soybeans were washed, soaked until 1 ml of water per gram of beans was absorbed, comminuted with water equivalent to 7.6 times their dry weight, and the mixture filtered through cheese cloth to obtain an aqueous extract free of large particles. Growth rates of 13 species of lactic-acid bacteria in sterile soymilk were generally greater than or comparable to those in cow's milk or Elliker's broth. Acid production in soymilk was not always directly related to growth rates of the organisms. Substantial formation of acid was limited to those bacteria able to utilize the sugars in soymilk, e.g., Streptococcus thermophilus, Lactobacillus delbrueckii, Lactobacillus pentosus, and Leuconostoc mesenteroides. Sources of readily available nitrogen (e.g., protein digests), when added to soymilk, enhanced acid production by S. thermophilus, the Leuconostoc species, and L. pentosus; appeared inhibitory to L. de...","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"37 1","pages":"30-36"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86165669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 69
IV. MILK HANDLING PRACTICES IN STORES. DIFFERENCES BETWEEN DATING AND NON-DATING MARKETS 牛奶在商店中的处理方法。约会市场和非约会市场的区别
Journal of milk and food technology Pub Date : 1971-01-01 DOI: 10.4315/0022-2747-34.1.46
E. D. Glass, G. H. Watrous, W. T. Butz, W. Johnstone, C. W. Pierce
{"title":"IV. MILK HANDLING PRACTICES IN STORES. DIFFERENCES BETWEEN DATING AND NON-DATING MARKETS","authors":"E. D. Glass, G. H. Watrous, W. T. Butz, W. Johnstone, C. W. Pierce","doi":"10.4315/0022-2747-34.1.46","DOIUrl":"https://doi.org/10.4315/0022-2747-34.1.46","url":null,"abstract":"New York City vs. Chicago Milk was found to be significantly less available in the dating market than in the non-dating market. A higher incidence of special deliveries was noted in the dating market than in the non-dating market. Milk inventories maintained in the dating market were significantly lower than milk inventories maintained in the non-dating market. Returns due to date or code expiration were identical for the dating and non-dating markets and so few as to be of no consequence. Birmingham vs. Montgomery Milk was found to be slightly less available in the dating market than in the non-dating market but the difference was not statistically significant at accepted confidence levels. A higher incidence of special deliveries was noted in the dating market than in the non-dating market. Milk inventories maintained in the dating market were slightly lower than milk inventories maintained in the non-dating market. Camden vs. Philadelphia Milk was found to be slightly less available in the dating marke...","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"223 1","pages":"46-53"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79994494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ACTIVATION OF BACTERIAL SPORES. A REVIEW1 细菌孢子的活化。一个REVIEW1
Journal of milk and food technology Pub Date : 1970-10-01 DOI: 10.4315/0022-2747-33.10.435
R. W. Berg, W. Sandine
{"title":"ACTIVATION OF BACTERIAL SPORES. A REVIEW1","authors":"R. W. Berg, W. Sandine","doi":"10.4315/0022-2747-33.10.435","DOIUrl":"https://doi.org/10.4315/0022-2747-33.10.435","url":null,"abstract":"","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"34 1","pages":"435-441"},"PeriodicalIF":0.0,"publicationDate":"1970-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87548153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
ISOLATION OF SALMONELLAE AND OTHER AIR-BORNE MICROORGANISMS IN TURKEY PROCESSING PLANTS1,2 土耳其加工厂沙门氏菌和其他空气传播微生物的分离1,2
Journal of milk and food technology Pub Date : 1970-09-01 DOI: 10.4315/0022-2747-33.12.395
E. A. Zottola, D. Schmeltz, J. Jezeski
{"title":"ISOLATION OF SALMONELLAE AND OTHER AIR-BORNE MICROORGANISMS IN TURKEY PROCESSING PLANTS1,2","authors":"E. A. Zottola, D. Schmeltz, J. Jezeski","doi":"10.4315/0022-2747-33.12.395","DOIUrl":"https://doi.org/10.4315/0022-2747-33.12.395","url":null,"abstract":"The air in seven Minnesota turkey processing plants was analyzed microbiologically for total numbers of bacteria per cubic foot, number of coliform organisms per cubic foot, and the presence of salmonellae. Plant environmental samples, that is walls, floors, and equipment adjacent to air sampling areas, also were tested for the presence of salmonellae. Areas sampled included: live bird area (hanging, stunning, killing), scald and picking areas, evisceration line, packaging line, and further Processing. Total numbers of bacteria in the air of one plant (T-5) ranged from more than 200,000/ft3 in the live bird area to 1/ft3 near the. evisceration line. Coliform numbers in the air of .a second plant (T-l) ranged from 400/ft3 in the live bird area to none in 100 ft3 in the other areas of the plant. Similar results were obtained in the other plants. Salmonellae were found in the air of the live bird area in 6 of the 7 plants and in the picking room of the other one. In each of the 7 plants salmonellae were not ...","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"48 1","pages":"395-399"},"PeriodicalIF":0.0,"publicationDate":"1970-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86615536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
EFFECT OF DILUTION BOTTLE MIXING METHODS ON PLATE COUNTS OF RAW-MILK BACTERIA 稀释瓶混合法对生乳细菌平板计数的影响
Journal of milk and food technology Pub Date : 1970-07-01 DOI: 10.4315/0022-2747-33.7.269
C. N. Huhtanen, A. R. Brazis, W. Arledge, E. W. Cook, C. B. Donnelly, R. Ginn, J. Murphy, H. E. Randolph, E. L. Sing, D. I. Thompson
{"title":"EFFECT OF DILUTION BOTTLE MIXING METHODS ON PLATE COUNTS OF RAW-MILK BACTERIA","authors":"C. N. Huhtanen, A. R. Brazis, W. Arledge, E. W. Cook, C. B. Donnelly, R. Ginn, J. Murphy, H. E. Randolph, E. L. Sing, D. I. Thompson","doi":"10.4315/0022-2747-33.7.269","DOIUrl":"https://doi.org/10.4315/0022-2747-33.7.269","url":null,"abstract":"Forty-six raw milk samples were analyzed for plate counts at 32 C by eight different laboratories; each using three mixing procedures for the initial dilution. These were: five inversions in a 5 sec period, 15 inversions in a 15 sec period, and the “standard” method of twenty-five, 1 ft long, vertical cycles in a 7 sec period. The standard method gave the highest bacterial counts (71.1 × 103/ml average) the 15-15 method was second highest (60.4 × 103/ml average) and the 5-5 method was lowest (57.8 × 103/ml average). The standard method gave significantly higher (P<0.01) bacterial counts than the other two. The inversion methods were not significantly different from each other. Tests of reproducibility (pooled average variances for each method) did not show any significant differences between mixing methods. There were significant differences in reproducibility between laboratories. There was evidence of interaction between mixing methods by samples and mixing methods by investigators.","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"7a 1","pages":"269-273"},"PeriodicalIF":0.0,"publicationDate":"1970-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88099314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A critical look at our conservative dairy industry. 以批判的眼光审视我们保守的乳制品行业。
Journal of milk and food technology Pub Date : 1970-06-01 DOI: 10.4315/0022-2747-33.6.249
C. Lane
{"title":"A critical look at our conservative dairy industry.","authors":"C. Lane","doi":"10.4315/0022-2747-33.6.249","DOIUrl":"https://doi.org/10.4315/0022-2747-33.6.249","url":null,"abstract":"Many feel that the dairy industry is far too conservative, meaning it is reluctant to adapt or change when the need arises. Seven conservative conditions, designated “sacred cows” of the dairy industry, need a major overhaul. These are: outdated recruiting methods and industry image; a reluctance to adopt new testing procedures which could increase milk volume and producer returns, especially for the manufacturing milk industry; conservatism in adopting new testing procedures, with particular reference to the electronic fat-testing devices; segmentation and isolation of industry components; producer thefts by fieldmen functioning as procurement personnel rather than trouble-shooters for farm problems; duplication and non-uniformity of inspections; a low priority for promotion and new product development. Elimination of the sacred cows could be accomplished by: tearing down prohibitive and conflicting legislative standards; ceasing to push for restrictive and discriminatory legislation which prohibits the ...","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"65 1","pages":"249-254"},"PeriodicalIF":0.0,"publicationDate":"1970-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91087131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Estimation of somatic cells in milk using membrane filter separation and DNA determination with diphenylamine. 用膜过滤分离法测定牛奶中的体细胞和用二苯胺测定DNA。
Journal of milk and food technology Pub Date : 1970-06-01 DOI: 10.4315/0022-2747-33.6.227
M. Hutjens, L. Schultz, G. E. Ward, S. Yamdagni
{"title":"Estimation of somatic cells in milk using membrane filter separation and DNA determination with diphenylamine.","authors":"M. Hutjens, L. Schultz, G. E. Ward, S. Yamdagni","doi":"10.4315/0022-2747-33.6.227","DOIUrl":"https://doi.org/10.4315/0022-2747-33.6.227","url":null,"abstract":"A diphenylamine-DNA method of estimating somatic cell concentration in milk was studied in two separate trials. Trial I involved 68 bulk milk samples and a comparison of detergent and centrifuge procedures for separation of milk fat prior to estimation of somatic cells. Membrane filters of 3μ-pore size were used to concentrate cells. Color developed with diphenylamine was measured in a spectrophotometer. The detergent preparation was superior to centrifuging, as judged by correlation coefficients between the direct microscopic cell count (DMSCC) and optical density (OD) of 0.93 and 0.82, respectively, for the two methods. Coefficients of variation of duplicate optical density readings were 9.4 and 16.7 for the detergent and centrifuge methods, respectively. Regression equations revealed a linear relationship between OD and DMSCC for the detergent, but a curvilinear relationship for the centrifuge procedure. In Trial II, 40 bulk milk samples were analyzed with an improved procedure involving detergent prep...","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"20 1","pages":"227-231"},"PeriodicalIF":0.0,"publicationDate":"1970-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81650140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
A MICROBIOLOGICAL EXAMINATION OF MUSCLE TISSUE OF BEEF, PORK, AND LAMB CARCASSES 对牛肉、猪肉和羊肉尸体肌肉组织的微生物学检查
Journal of milk and food technology Pub Date : 1969-09-01 DOI: 10.4315/0022-2747-32.9.357
C. Vanderzant, R. Nickelson
{"title":"A MICROBIOLOGICAL EXAMINATION OF MUSCLE TISSUE OF BEEF, PORK, AND LAMB CARCASSES","authors":"C. Vanderzant, R. Nickelson","doi":"10.4315/0022-2747-32.9.357","DOIUrl":"https://doi.org/10.4315/0022-2747-32.9.357","url":null,"abstract":"A microbial examination was made of muscle tissue of beef, pork, and lamb carcasses. Samples were taken shortly after death and after 3 days of storage at 1 C. A majority of the samples did not yield isolates on blood agar plates. The following microbial types were isolated: Staphylococcus, Micrococcus, Sarcina, Streptococcus, coryneforms, Bacillus, Clostridium, Flavobacterium, Pseudomonas, Moraxella, Alcaligenes, Acinetobacter anitratum (Herellea), and yeasts and molds. Staphylococci were predominant among the isolates obtained from the three species. A large percentage of the staphylococci were coagulase-positive. Coryneforms also predominated in the lamb and beef samples. Warm muscle samples yielded a greater number of bacterial isolates than chilled Samples. No psychrophilic bacteria were recovered from the samples.","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"45 1","pages":"357-361"},"PeriodicalIF":0.0,"publicationDate":"1969-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88397494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 106
INTER-RELATED RESPONSIBILITIES FOR MILK PRODUCTION AND QUALITY CONTROL 牛奶生产和质量控制的相关职责
Journal of milk and food technology Pub Date : 1969-09-01 DOI: 10.4315/0022-2747-32.9.350
A. E. Abrahamson
{"title":"INTER-RELATED RESPONSIBILITIES FOR MILK PRODUCTION AND QUALITY CONTROL","authors":"A. E. Abrahamson","doi":"10.4315/0022-2747-32.9.350","DOIUrl":"https://doi.org/10.4315/0022-2747-32.9.350","url":null,"abstract":"The capacity to work cooperatively, industry with the various agencies, concerned with milk production and quality control has been demonstrated. Cooperation among the agencies having responsibilit...","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"97 1","pages":"350-353"},"PeriodicalIF":0.0,"publicationDate":"1969-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78572983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
APPLES FROM ARGENTINA: CHEMICAL AND PHYSICAL CHARACTERISTICS USEFUL FOR TECHNOLOGY 阿根廷苹果:对技术有用的化学和物理特性
Journal of milk and food technology Pub Date : 1969-03-01 DOI: 10.4315/0022-2747-32.3.79
E. Rotstein, Melhem S.S. Namor, A. M. Sica, Jorge Aruannd
{"title":"APPLES FROM ARGENTINA: CHEMICAL AND PHYSICAL CHARACTERISTICS USEFUL FOR TECHNOLOGY","authors":"E. Rotstein, Melhem S.S. Namor, A. M. Sica, Jorge Aruannd","doi":"10.4315/0022-2747-32.3.79","DOIUrl":"https://doi.org/10.4315/0022-2747-32.3.79","url":null,"abstract":"With a look to apple industrialization in Argentina, apples were analyzed to evaluate them as a raw material. The 9 more important varieties harvested in 1967 were: Red Delicious, Granny Smith, Rome Beauty, Delicious, Black Wine-sap, King David, Yellow Newtown Pippin, Jonathan, and Golden Delicious. They were analyzed for: specific gravity, pH, total acidity (as malic acid), soluble solids, total sugar, reducing sugar, pectin, tannin, ascorbic acid, moisture, starch (qualitative test), dry matter, and texture. Analysis were made on fruit harvested at the picking date, and on samples from the same tree held 1, 2, 4 and 6 weeks (the latter for Delicious and Red Delicious only). All analyses were completed within 24 hr of harvesting time. A review is made of similar data from other countries. Argentinian apples are similar to those grown in other countries.","PeriodicalId":16561,"journal":{"name":"Journal of milk and food technology","volume":"191 1","pages":"79-89"},"PeriodicalIF":0.0,"publicationDate":"1969-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88117467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信