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UPV Theses and Dissertations

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Degree: search.filters.degree.Bachelor of Science in BiologyKeyword: search.filters.keyword.Seaweed

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    Wine production from different species of seaweed
    Benosa, Sophia Grace O. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2009-04)
    This study specifically aimed to test and compare the wine production of Gracilaria verrucosa, Kappaphycus alvarezii, and Kappaphycus striatum based on the physicochemical evaluation. The best seaweed wine produced was also determined through sensory evaluation. The samples underwent a 28-day fermentation period using Saccharomyces cerevisiae 2185 under room temperature at a pH of 3.0 and sugar content of 30%. Based on the physicochemical parameters, Gracilaria verrucosa was the best wine—high percentage of alcohol content, stable pH during the entire fermentation period, sweet taste of the wine owing to the high residual sugar, high amount of percent (%) TA without affecting the taste of the sample, clarity of the wine product after fermentation owing to the low total suspended solids. Gracilaria verrucosa also produced the best seaweed wine based on sensory evaluation.
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    The effect of seaweed (Kappaphycus alvarezii) as a partial substitute for commercial feed on the growth of chicken
    Bedia, Alma Mae S. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-08)
    The study determined whether the use of seaweed (Kappaphycus aIvarezii) in different amounts as a partial substitute to commercial feeds would enhance the growth of chickens, reduce feed consumption, increase feed efficiency, and increase profit. The chickens were first fed with commercial broiler starter mash feeds for 15 days. Then, on the 16th day to the 35th day, the chickens were fed with different combinations in 1:1, 1:2, and 1:3 ratios of commercial broiler finisher feeds to K. alvarezii. Chickens fed with purely commercial broiler finisher feeds served as the control. Feed consumption, liveweight gain, and feed efficiency were computed every three days, while Profitability was determined at the end of the experimental period. Results showed that the use of K. alvarezii as a partial substitute to commercial broiler finisher feeds in a 1: 1 ratio increased the profit as well as the growth of the chickens, and it is comparable to that in the control (fed with purely commercial broiler finisher feeds). When the amount of K. alvarezii in the feed ration is more than 50% (1:1 ratio), it was observed that it would hamper the growth of the broilers.