Showing papers by "Universidade Federal de Viçosa published in 1984"

Characterization and Distribution of Lactic Acid Bacteria from Traditional Cocoa Bean Fermentations in Bahia

Abstract: Bacteria of the families Lactobacilaceae and Streptococcaceae were isolated from cocoa beans fermented by the traditional method used in the State of Bahia (Brazil). During the first 48 hr of the process these bacteria were better established than the yeasts. This observation differs from those reported by other researchers working in other countries. Identification studies showed eight homolactic species: Lactobacillus plantarum, Lactobacillus casei, Lactobacillus delbrueckii, Lactobacillus acidophilus, Lactobacillus lactis, Pediococcus cerevisiae, Pediococcus acidilactici, Streptococcus lactis and two heterolactic species: Leuconostoc mesenteroides and Lactobacillus brevis. L. plantarum was found better distributed and the thermophile L. delbrueckii was found to constitute 26% of the population at 16 hr.

Urea-Elicited Changes in Relative Electrophoretic Mobility of Certain Glycinin and β-Conglycinin Subunits

Abstract: Six molar urea in sodium dodecyl sulfate-polyacrylamide gels altered the relative electrophoretic mobility of several soybean protein subunits. Glycinin acidic polypeptide components A(3) and A(4) could be resolved from the other acidic polypeptides. A variant of the delta' subunit of beta-conglycinin was identified.

Aeration and Its Influence on the Microbial Sequence in Cacao Fermentations in Bahia, with Emphasis on Lactic Acid Bacteria

Abstract: Three aeration treatments on cacao fermentations in Bahia produced a basically similar microbial sequence which was influenced by the time and intensity of aeration. An initial, low temperature, semi-anaerobic phase dominated by yeasts and lactic acid bacteria, was superceded by aerobic and thermophyllic bacteria when the fermentations gained heat after aeration. Delay in aeration retarded this change in flora while over aeration accelerated it and, in addition, provoked a second lactic acid bacteria phase towards the end of fermentation. Lactobacillaceae were predominant during the anaerobic period and Streptococeaceae under aerated conditions. This marked, lactic acid bacteria population during the early stages of fermentation is not usual and would account for the lactic and acetic acids produced during this period.

The nature and uses of the timber production function: Eucalyptus grandis in Brazil.

Abstract: Methods for estimating timber production are discussed and 7 equations were fitted to E. grandis data by linear regression. A polynomial estimating growth as a function of age, water input (represented by annual actual evapotranspiration), nutrient input (represented by P in kg per hectare) solar radiation (represented by hours of sunshine) and growing stock (b.a.) was considered to be the most appropriate. The potential uses of the production function in intensive forest management are discussed. 55 references.

Nonlinear photons in the universe: II — The Anisotropic Case

Abstract: We examine the consequences of nonminimal coupling of electromagnetic and gravitational fields. An exact solution is presented, which corresponds to a generalization of the anisotropic universe of Kasner and which can be interpreted as a previous era of an isotropic (photon dominated) Friedmann-like universe.

TÉCNICAS O-GOSHI e NOROTE-SEOI-NAGUE E SEUS EFEITOS NA MELHORIA DA FLEXIBILIDADE DE CRIANÇAS JUDOCAS.

Abstract: O objetivo desta pesquisa experimental foi verificar se as tecnicas O-GOSHi e MOROTE-SEOI-NAGUE poderiam promover melhores indices de flexibilidade em criancas judocas. foram utilizada como sujeitos, trinta e seis criancas do sexo masculino na faixa de. 10 a 13 anos de idade., sendo, vinte, e quatro da escolinha de do judo do departamento de Educacao fisica da Universidade federal de Vicosa-MG. , e doze da Escola Estadual Dr. Raimundo Alves Torres divididos em tres grupos de doze sujeitos cada, dois experimentais e um grupo de controle. Para coleta dos indices de flexibilidade utilizou-se o testes de sentar e alcancar de WELLS & D1LL0U ( 1952) no pre e pos-teste, sendo o periodo experimental de sete semana com quatorze sessoes de cinquenta minutos (duas vezes/semana). Na analise de variaveis encontrou-se diferenca significativa entre as medidas dos grupos (p < 0,01) z, para saber em qual grupo realmente havia diferenca, foi aplicado o teste de Tukey. Chegou-se a conclusao que: a)- entre as medias dos grupos experimentais A e B nao houve diferenca significativa (p < 0,05); b]- houve diferenca significativa entre ai medias do grupo experimental B e grupo de controle C; c)- nao houve diferenca significativa entre as medias do grupo experimental A e grupo de controle C (p < 0,05).

In Vitro Primaquine Sensitivity Studies in Asiatic Indians from the State of Gularat

Abstract: Glucose-6-Phosphate dedydrogenase deficiency is an inborn error of metabolism. Individuals suffering from this abnormality may experience an acute hemolytic episode after ingestion of certain drugs and some vegetable food products (Brewer, Tarlov & Alving, 1960). This deficiency trait has a wide geographic distribution and the incidence varies greatly in different racial and ethnic groups. Generally dark skinned groups have a much higher incidence and the highest incidence has been reported in Kurdish Jews (60%, Motulsky, 1960). The incidence amongst the various ethnic groups is presented in Table 1 (Keller, 1971). Extensive lists of G-6-PD deficiency and variants in several population groups have been compiled (Yoshida, Beutler & Motulsky, 1971; Yoshida & Beutler, 1978).