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UPV Theses and Dissertations

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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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    Economic profitability of shrimp (Acets spp.) processing in Barangay Atabayan, Tigbauan, Iloilo
    Belleza, Rey M.; Saloria, Jet R. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2002-04)
    In general, this study aims to determine the economic profitability of shrimp processing in Barangay Atabayan. Specifically, the study describes the sociodemographic profile of the processors and the costs incurred in processing. It also identifies the problems encountered by the processors, and describes the production and pre-sale practices of the business. This study uses the census method in data gathering. All the eleven processors served as respondents. An interview translated into Kinaray-a was used to gather information from processors. The respondents were classified according to the method of processing they used: (1) fermentation, that produces guinamos and (2) drying, that produces kalkag. Seven of the processors were male and 4 were female; their average age was 54.45 years. They have been into shrimp processing at an average of 25.91 years. They do not rely on shrimp processing alone. Some of them engaged in farming, fishmeal selling, fishing and part-time driving. The processors had positive operating profit per-kg-of-produce per production day. In general, the processors had a positive financial profit per-kg-of-produce but the processor engaged in drying only incurred a negative financial profit. Fermentation had a positive pure economic profit per-kg-of-produce while drying had a negative pure economic profit. For drying to be profitable, costs of variable inputs must be considered. Results showed that it is more profitable to venture in both drying and fermentation because of a higher pure economic profit compared with venturing in fermentation or drying only. Weather, uncertainty of payments of some wholesalers, entry of illegal fisher folk from neighboring towns and the outlawing of sungkit, a gear used in catching the shrimps, were the problems faced by the shrimp processors.