June 2011
Pigments of guava paluma cultivar stored under environmental conditions
This study evaluated the levels of pigments in guavas such as chlorophyll, total carotenoids, total anthocyanins and yellow flavonoids. In the study, guava fruits (Paluma cultivar) were used, and they were stored under environmental conditions for nine days. The evaluation of guava fruit pigment levels was carried out every two days. Findings showed significant differences regarding levels of chlorophyll and...
June 2011
Processing quality of improved potato (Solanum tuberosum L.) cultivars as influenced by growing environment and blanching
A study was conducted to investigate the influence of growing environment and blanching on chips quality of five improved potato cultivars (Chiro, Zemen, Bedassa, Gabissa and Harchassa). The cultivars were grown at Langaie, Kulubi and Haramaya, all in the eastern part of Ethiopia. The highest tuber dry matter content (27.33%) and specific gravity (1.110 gcm-3) were produced by cultivar Harchassa while the...
June 2011
Knowledge of nutrition and health benefits and frequency of consumption of fruits and vegetables among Ghanaian homemakers
A cross-sectional survey was conducted with the objective of assessing homemakers’ knowledge of the nutritional and health benefits of fruits and vegetables and how this knowledge influenced their consumption. A systematic random sampling technique was used to select one hundred and fifty homemakers from three locations in Ghana. A pre-tested structured questionnaire was used to collect data on forms in which...
June 2011
Phenotypic identification and technological properties of lactic acid bacteria isolated from selected commercial Nigerian bottled yoghurt
Twenty two strains of lactic acid bacteria (LAB) were isolated from 30 samples of commercial Nigerian bottled yoghurt (produced on a small scale). Isolates were phenotypically characterized and their technological properties such as acidification, exopolysaccharides (EPS) production, enzymatic activities, biogenic amine production and bacteriocin production were studied following standard procedures. The...
June 2011
The physicochemical characteristics of sodium alginate from Indonesian brown seaweeds
This study aimed to know the physichochemical characteristic of sodium alginate that was obtained from Sargassum crassifolium, Sargassum polycystum, Padina sp., andSargassum echinocarpum, which grew on the coral coast of Gunung Kidul Yogyakarta Indonesia. The result showed that the average of the yield was 16.93 to 30.50%. The chemical properties, that is, water,...
June 2011
Influence of cultivation conditions on the production of a protease from Aspergillus carbonarius using submerged fermentation
The ability of a raw starch digesting amylase producer, Aspergillus carbonarius for protease production was evaluated in this study using standard methods. The fungus grew and produced appreciable levels of protease using different carbon and nitrogen sources. Sources of carbon and nitrogen significantly (p < 0.001) influenced protease production by this fungus. Soybean meal and glucose were the...
June 2011
Insecticidal effects of essential oils of Pelargonium graveolens and Cymbopogon citratus on Sitophilus zeamais (Motsch.)
The evaluation of the effect of essential oils of Pelargonium graveolens andCymbopogon citratus on maize weevil (Sitophilus zeamais) has assigned the most significant insecticidal activity against it with a maximum mortality rate of 100%. The essential oils were found to have high contact and ingestion toxicity than fumigant / respiratory poison. This is evident from 90% mortality of...
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