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At least 1,711 records · Page 95Linked to original sources
PubMed2001

The potential of a polyphasic PCR-dGGE approach in evaluating microbial diversity of natural whey cultures for water-buffalo Mozzarella cheese production: bias of culture-dependent and culture-independent analyses.

A polyphasic PCR-DGGE approach was used to describe the microbial population occurring in natural whey cultures (NWCs) for water-buffalo Mozzarella cheese production. Total microbial community was assessed without cultivation by analyzing DNA directly extracted from the original samples of NWC. In addition, DNA extracted from bulks of cells formed by harvesting colonies from the serial dilution agar plates of a variety of culture media was used to profile the "cultivable" community. The 16S rDNA V3 region was amplified using DNA from NWC as well as DNA from bulks as templates and the amplicons were separated by DGGE. The microbial entities occurring in NWCs were identified by partial 16S rDNA sequencing of DGGE bands: four lactic acid bacteria (LAB) closest relative of Streptococcus thermophilus, Lactococcus lactis, Lactobacillus delbrueckii and Lactobacillus crispatus were revealed by the analysis of DNA directly extracted from NWC while two other LAB, Lactobacillus fermentum and Enterococcus faecalis, were identified by analyzing DNA from the cultivable community. The developed PCR-DGGE analysis of the "cultivable" community showed good potential in evaluating microbial diversity of a dairy environment: it usefully highlighted the bias introduced by selective amplification when compared to the analysis of the total community from NWC and allowed suitability of media and growth conditions to be evaluated. Moreover, it could be used to complete the culture independent study of microbial diversity to give information on concentration ratios among species occurring in a particular environment and can be proposed for rapid identification of dominant microorganisms in alternative to traditional tools.

Animals↗
PubMed1999

The epidemic of obesity in American Indian communities and the need for childhood obesity-prevention programs.

American Indians of all ages and both sexes have a high prevalence of obesity. The high prevalence of diabetes mellitus in American Indians shows the adverse effects that obesity has in these communities. Obesity has become a major health problem in American Indians only in the past 1-2 generations and is believed to be associated with the relative abundance of high-fat foods and the rapid change from active to sedentary lifestyles. Intervention studies are urgently needed in American Indian communities to develop and test effective strategies for weight reduction. The poor success rate of adult obesity treatment programs in the general population points to the need to develop prevention approaches aimed toward children. Because eating and physical activity practices are formed early in life and may be carried into adulthood, prevention programs that encourage increased physical activity and healthful eating habits targeted toward young people need to be developed and tested. To be most effective, interventions must be developed with full participation of the American Indian communities.

Adolescent↗
PubMedDate not supplied

Lowering blood cholesterol: recent developments of significance to community health nurses.

Familiarity with the foregoing recent important studies and reports is fundamental to the planning and delivery of effective and sound health promotion and risk-reduction programs. Of particular concern to community health nurses is that most people are unaware of their cholesterol level. High blood cholesterol can effectively be lowered in most instances when individuals are educated about proper dietary and/or drug interventions.

Community Health Nursing↗
PubMed1995

Development of a microbial community of bacterial and yeast antagonists to control wound-invading postharvest pathogens of fruits.

Two antagonists, the bacterium Pseudomonas syringae and the pink yeast Sporobolomyces roseus, against blue mold (caused by Penicillium expansum) on apple controlled this disease more effectively when combined at approximately equal biomass (50:50 of the same turbidity) than in individual applications. Addition of L-asparagine enhanced the biocontrol effectiveness of P. syringae but decreased that of S. roseus and had no significant effect when the antagonists were combined. Populations of both antagonists increased in apple wounds and were further stimulated by the addition of L-asparagine. The carrying capacity of wounds for P. syringae was not affected by S. roseus. Populations of P. syringae in wounds inoculated individually or in a 50:50 mixture with S. roseus reached the same level after 3 days at 22 degrees C. However, populations of S. roseus recovered after applications of the mixture were consistently lower than those recovered after individual applications. Similar effects were observed in in vitro tests in which populations of S. roseus grown in mixtures with P. syringae were consistently lower than those grown alone, while the populations of P. syringae were not affected by the presence of S. roseus. A total of 36 carbon and 35 nitrogen compounds were tested for utilization by both antagonists. Fourteen nitrogenous compounds were utilized by both P. syringae and S. roseus, and an additional nine compounds were utilized by P. syringae. S. roseus and P. syringae utilized 17 and 13 carbon sources, respectively; 9 sources were common to both antagonists. Populations of these antagonists in apple wounds appear to form a relatively stable community dominated by P. syringae.(ABSTRACT TRUNCATED AT 250 WORDS)

Biomass↗
PubMed2006

Developing and sustaining community-academic partnerships: lessons from Downstate New York Healthy Start.

Partnering with communities is a critical aspect of contemporary health promotion. Linkages between universities and communities are particularly significant, given the prominence of academic institutions in channeling grants. This article describes the collaboration between a school of public health and several community-based organizations on a maternal and infant health grant project. The partnership serves as a model for ways in which a university and community organizations can interrelate and interact. Central lessons include the significance of sharing values and goals, the benefit of drawing on the different strengths of each partner, the gap created by the university's institutional focus on research rather than service and advocacy, and the strains created by power inequities and distribution of funds. A key element of the partnership's success is the emphasis on capacity building and colearning. The project demonstrates the potential of employing community-academic partnerships as a valuable mechanism for implementing community-based health promotion programs.

Community Health Services↗