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Copyright of Revista Cientifica de la Facultade de Veterinaria is the property of Universidad del Zulia, Facultad de Ciencias Veterinarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The melissopalinology allows to characterize the honey of bees according to their botanical and geographical origin, to allow identifying their physicochemical characteristics. Thus, melissopalinology of honey produced in a white clover (Trifolium repens) culture was determined. White clover cultivation was planted and a hive of Apis mellifera was installed adjacent to the crop. The variables pollen size and morphology of the honey in two seasons and the type of pecoreated species were determined. Differences between epochs were analyzed using the Chi-square test and Student-t for shape and size respectively, in addition to descriptive statistics. The main taxonomic species found in honey belong to Solanaceae, Brassicaceae and Fabaceae, being classified as polyfloral honey. White clover pollen did not present the highest value in honey, but it was among the main pecoreated species, reaching 20.9% in the samples. The results between periods did not show statistical differences. The average size of the white clover pollen grain was 25.7 micrometers, being an acceptable value for the bees and the shape was characterized by being spherical and curved in the center and flatter in the periphery. [ABSTRACT FROM AUTHOR]

The potential in vitro of Lactobacillus gasseri was evaluated. To do that, the susceptibility/resistance to penicillin (P), cephalothin (KF), ciprofloxacin (CIP), gentamicin (CN) and dicloxacillin (DCX) was determined. The inhibitory effect of L. gasseri and the supernatant on Y. pseudotuberculosis was studied. L. gasseri growth was studied in various stress conditions such as temperature 38oC and 45oC, pH 2.5-3.5-4.5 and 6, concentrations of 3-4 and 5% bile salts and 0.5-1 and 2% of bovine bile. In the kinetics CFU/150µl, pH, acidity, sugar consumption and protein determination on MRS and PRO mediums were determined. An analysis of peptide and lactic acid was performed using high-performance liquid chromatography. It was found that: L. gasseri was resistant to KF and DCX unlike Y. pseudotuberculosis was resistant only to DCX. L. gasseriand its supernatant inhibited the pathogenic bacteria with halos of 4 and 3 ml; growths of 3x1013 and 3x1012 CFU/150μl at 38°C and 45°C; 3x109-1,3x1010 and 3x109CFU/150μl at pH from 6-4.5 and 3.5; 2.7x1012-1.3x1012 and 2.5x1012 CFU/150μl to 3-4 and 5% bile salts; 5x1012-2.4x1012 and 3.5x1012 CFU/150μl to 0.5-1 and 2% bovine bile were observed. The exponential phase of the MRS and PRO mediums occurred at 20 and 16 hours with values of 5x1011 and 3.7x1012CFU/150μl; the pH recorded initial and final values between 5.72 to 4.6 and from 5.7 to 4.48, and initial and final rates of 0.54 to 1.32% and 0.21 to 0.90% acidity. The total consumption of sugars in the MRS and PRO mediums was 69.94 and 88.09% and 0.66 and 3.12 mg/L of protein. The supernatant recorded values of 4.80 and 5.10 g/L of lactic acid and a peptide with a concentration of 0.58 mg/ml. [ABSTRACT FROM AUTHOR]

Copyright of Veterinary & Animal Science / Veterinaria y Zootecnia is the property of Universidad de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Lactobacillus plantarum strains underwent different in vitro tests through two means which simulated physiological conditions of the digestive tract; the first was the commercial MRS broth and the second was prepared based on sugar, soy milk, milk powder and wheat bran (PRO). The maximum growth relative to kinetics parameters of fermentation, the count of microorganisms viable in plate (CFU/150 ul), tolerance to pH (2.5; 3.5; 4.5 and 6%), resistance to 38°C and 45°C temperatures, viability against bile salts (3%, 4% and 5% w/v) and bile (0.5%, 1% and 2% w/v), susceptibility to antibiotics, determination of proteins, consumption of sugars, identification of peptides and lactic acid in supernatant samples were evaluated. The exponential phase in MRS and PRO media was presented at 16 hours, with a sugar consumption of 1.71 mg/L and 1.94 mg/L, a protein value of 1.61 and 1.47 mg/L. in the MRS and PRO media. The supernatant recorded values of 6.50 and 6.80 g/L lactic acid. L. plantarum was resistant only to dicloxacillin, and presented inhibition halos on Yersinia pseudotuberculosis 6 mm and 5 mm in the supernatant; counts of 3x1011and 3x1012 CFU/150μl at 38°C and 45°C, 1x109 CFU/150μl to pH 6; 4x1010 at pH 4.5 and 1x109 CFU/150μl to pH 3.5 were obtained. Finally, it was viable to different concentrations of bile salts with values between 2x1011 and 7x1013 CFU/150μL and values between 2x1012 and 2,4x1012CFU/150μL for bovine bile. [ABSTRACT FROM AUTHOR]

The flora of a place determines beekeeping and influences nutritional and organoleptic characteristics of honey. To do this, we identified and classified taxonomically floral species with potential bee apiary of the University of Nariño, and the nutritional composition of honey produced was determined. Radial transect methodology and assessment matrix used natural resources; also get information from the community. The bee flora variables and determination of food resources (nectar, pollen nectar/ pollen) were analyzed using descriptive statistics and Pearson correlation between the presence and participation of the plants. Also, changes were determined in the composition of honey at different times, using a completely randomized design. The most important plant species identified by the binomial classification were Brassica rapa, Taraxacumofficinale, Trifoliumrepens, Fragariachiloensis, Eucalyptus globulus. The composition of honey did not show significance (p>0,05) at different times of the year; however, highlights the average values of total solids: 83,45 g/100 g, protein: 0,40 g/100 g, reducing sugar: 69,1 g/100 g Calcium 5,5 mg/100 g, pH 3,8 and 77,9° Brix. The botanical families more interest in beekeeping, Fabaceae and Asteraceae were getting honey polyfloral acceptable nutritional composition. [ABSTRACT FROM AUTHOR]

The fermentative process and in vitro inhibition of L. lactis in Staphylococcus aureus and Staphylococcus epidermidis were assessed. The growth of L. lactis at three pH (2.5, 4.5 and 7), bile salts (0.5, 1 and 2 %), bovine bile (1 and 1.2 %) and two temperatures (38 and 45 °C) were evaluated. Peptides and organic acids in supernatant of L. lactis by HPLC were determined. Fermentation kinetics was carried out, evaluating: pH, total sugar, protein and lactic acid. An antibiogram of dicloxacilin, cefepime, penilicin and cefalotin was made. The inhibition of L. lactis and its supernatant were defined in pathogenic strains. The best growth was at a pH of 2.5 (3 x 1012 UFC/ml); of 1 x 1010 and 4 x 109 UFC/ml for 0.5 % of bile salts and 1.2 % of bovine bile, respectively; of 3.5 x 1013 and 3.4 x 1013 UFC/ml for 38 and 45 °C, respectively. The HPLC determined the peptides VAR-TIR-VAR and lactic acid (83.11 %). The fermentation kinetics determined the exponential phase at 14:24 h with a value of 77 x 1010 UFC/ ml, pH values of 4.284, 2.33 mg/ml sugar, 1.44 mg/ml protein and acidity of 0.79 %. It was found that S. aureus and S. epidermidis were sensitive to all antibiotics. The pathogenic bacteria were resistant to the lactic strain, but S. epidermidis was sensitive to the supernatant of L. lactis. The conclusion is that Lactobacillus lactis showed adequate growth capacity, good fermentation parameters and inhibitory effect in strains of S. aureus and S. epidermidis in in vitro conditions. [ABSTRACT FROM AUTHOR]

In order to form a basis for the formulation of future research proposals related to apiculture in family and commercial systems, the work was aimed to characterize some variables related to the behavior of the honey bee (Apis mellifera), and organize the apicultural production process to obtain honey from bees in the Apiary of the Botana Experimental farm at Universidad de Nariño, in Pasto, Colombia. The work was carried out taking into account variables such as: frequency of visits of beesper square meter, colors of visited flora, time spent in visited flowers, offered resource and distance from the hive to visited flora. The characterization of the honey productive process was carried out in three phases specifically: inventory phase, description phase and of procedures phase. The Ethological behavior was analyzed using student's t statistical test, comparing plants frequently visited and time Apis mellifera spent in them. It was observed that Apis mellifera visited most frequently the species Brassica napus, Trifolium repens (White Clover), Taraxacum officinale (Dandelion) and Trifolium pretense (Red Clover). [ABSTRACT FROM AUTHOR]

Copyright of Magis: Revista Internacional de Investigación en Educación is the property of Pontificia Universidad Javeriana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)