1. This document is HS918, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: May 2003. Please visit the EDIS Web site at http://edis.ifas.ufl.edu. 2. Daniel J. Cantliffe, professor and chair, Horticultural Sciences Department; John J. Vansickle, professor, Food an...

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Probiotics are microorganisms that when ingested in high enough numbers beneficially affect the host’s health. To reach these beneficial results, it is necessary to maintain good viability of the probiotic strains during processing, storage and consumption. Stress conditions that usually affect viability of probiotics during production are the following: large concentration of fermentation by-p...

Aim: To evaluate the phytochemical constituents and the aphrodisiac potential of the aqueous extract of Fadogia agrestis (Rubiaceae) stem in male albino rats. Methods: The aqueous stem extract of the plant was screened for phytochemical constituents. Male rats were orally dosed with 18 mg/kg, 50 mg/kg and 100 mg/kg body weight, respectively, of the extract at 24 h intervals and their sexual beh...

important role in food technology. LAB include rod, short-rod and coccus in cell types and physiological and biochemical characteristics. Isolates of LAB have been frequently reported from a variety of environments, including milk products, fermented foods and plants. However, studies on the isolation of LAB from soil remain scarce, even though it is well known that spore-forming LAB exist in s...

The genus Pseudomonas has been reported to be a genetically and metabolically diverse bacterial group (Anzai et al., 2000; Kersters et al., 1996; Moore et al., 1996). Pseudomonas species of the rRNA-DNA similarity group I have been previously stated by Palleroni (1984) to form the genus Pseudomonas (sensu stricto) within the g subclass of the Proteobacteria. The formerly Pseudomonas species of ...

Oxygen delivery to the tissues is crucial to survival but our understanding of the processes involved in the transport of oxygen from blood to tissue is incomplete. The aim of the present work is to illustrate a long-standing paradox regarding such transport by reporting new state-of-the-art measurements and by analyzing the results in several ways, thereby exploring possible resolutions of the...

teria and their relatives,” are a major class of bacteria (Gupta, 2000; Holt et al., 1994; Stackebrandt et al., 1988; Zinder, 1998). This group of predominantly Gram-negative bacteria contains more than 200 genera with a great diversity of phenotypic and physiological attributes. Proteobacteria have been classified based on homology of 16S ribosomal RNA or by hybridization of ribosomal RNA or D...

Human immunodeficiency virus type-1 (HIV-1), a member of the lentivirus family, encodes two regulatory genes (tat, rev) and four accessory genes (vif, vpr, vpu, nef) in addition to three common retroviral structural genes (gag, pol, env). Viral protein R (Vpr) is a small 14-kDa protein of 96 amino acids. Vpr is incorporated into the virions through its interaction with the p6 region of HIV-1 Ga...