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    Effects of alginate coating loaded with lemongrass essential oil-cyclodextrin inclusion complex on the postharvest quality of calamansi(Citrus microcarpa)
    Astorga, Krizzia Anne B. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2018-06)
    Calamansi (Citrus microcarpa) is locally grown in the Philippines and is considered to be an important commodity because of its wide range of uses. Losses of this fruit in the country already reached up to 30% because of postharvest degradation. To address this problem, three coating treatments (1% alginate, 1% alginate loaded with lemongrass essential oil-B-cyclodextrin inclusion complex, and 1% alginate loaded with lemongrass essential oil-hp-B-cyclodextrin inclusion complex) were made for the purpose of examining their potential in the preservation of the postharvest quality of calamansi. Quality parameters such as color and weight loss of calamansi, as well as pH, FTIR spectra, total soluble solids, and titratable acidity of the fruit juice were evaluated in a span of 15 days at room temperature storage. Results show that the prepared edible coatings did not significantly preserve the postharvest quality of calamansi (p > 0.05) as coated samples resulted to earlier appearances of yellow and brown peel color, higher weight loss percentages, pH, and total soluble solids content. Out of the three coating treatments, fruit samples coated with 1% alginate resulted to lower weight loss percentages, pH, TSS, and TA. Fruit samples coated with 1% alginate loaded with lemongrass essential oil-hp-B-cyclodextrin inclusion complex resulted to the highest pH, TSS, and TA, while those coated with 1% alginate loaded with lemongrass essential oil-B-cyclodextrin inclusion complex resulted to the highest weight loss percentages. Data on the titratable acidity weren’t conclusive since the results obtained were not in agreement to the expected outcome. The ineffectiveness of the coatings may be a result of unfavorable storage conditions and incompatibility of the coating materials or formulations on the calamansi.
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    Socio-economic impact of TV product advertisements to the taste and preference and level of concumption of University of the Philippines-Visayas' College of Arts and Sciences' students
    Aspiras, Marvin Arcangel (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2010-03)
    The principal purpose of this paper is to uncover the advertising-consumption relationship. In view of this, the following research objectives were pursued: (1) determination of the level of exposure, awareness and knowledge of college students towards TV product advertisements, (2) identification of the different TV product advertisements’ elements affecting the taste and preference of college students, (3) determination of the effects of TV product advertisements to the taste and preference of college students, (4) verification if TV product advertisement is a significant factor affecting the level of consumption of college students and (5) identification of other significant factors affecting the consumption levels of college students. Qualitative and quantitative approaches were employed through logistic and linear regression method. The study was carried out by administering questionnaires among 120 college students. The researcher found out that the respondents generally have low exposure but relatively high level of awareness and knowledge to TV products advertisements. Moreover, the researcher found out that storyline/theme, actor/actress/models and punch line/dialogue ranked the first three highly significant elements affecting the respondents taste and preference. Consequently, the researcher determined that an increase in the level of awareness and knowledge of the respondents increases their taste and preference increases as well. Lastly, by logistic regression the researcher found out that for every unit increase in the number of hours of watching TV, the chance of consuming toothpaste or shampoo is increased by 615.2%. On the other hand, by linear regression, taste and preference was found to be significantly affecting consumption both for advertised shampoo and toothpaste products.
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    Nature and operation of local cable networks in Miag-ao and Janiuay, Iloilo as they adhere to NTC rules and regulations as they serve subscribers
    Aspa, Ma. Edevae; Deferia, Mary Gold; Umadhay, Julie Ann (Division of Humanities, College of Arts and Sciences, University of the Philippines Visayas, 2004-10)
    This study is about the two local cable networks in the province of Iloilo, namely. Southern Iloilo Cable Incorporated in Miag-ao and Oway Cable Ventures Incorporated in Janiuay. The study aims to know the nature and operation of the local cable networks in Miagao and Janiuay, Iloilo. It aims to find out the similarities and differences of the said local cable networks, and determine if these local cable networks follow the rules and regulations set by the National Telecommunications Commission (NTC). Purposive sampling, a type of non-probability sampling that uses respondents who best meets the purpose of this study, is used. The station managers are allowed to select the respective subscribers to be surveyed for the purpose of getting the exact location of their coverage, to know the condition of the reception, and the perception of the subscribers on the said local cable network in the municipality. In analyzing the data gathered, the researchers used frequency counts and percentage. Results show that the subscribers of Southern Iloilo Cable Incorporated in Miag-ao, Iloilo were not satisfied with the services offered by the local cable network in the municipality. Meanwhile, the subscribers in Janiuay, Iloilo were satisfied with the services offered by Oway Cable Ventures Incorporated.
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    The growth and yield performance of oyster mushroom (Pleurotus ostreatus Fries) using fish wastewater as fertilizer
    Arroyo, Karen T. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2000-04)
    Oyster mushroom, Pleurotus ostreatus, is an edible wood-inhabiting fungi that continues to gain popularity in the Philippines, as well as in other tropical countries. With the use of modern technology, this mushroom can be grown in the Philippines, provided sufficient moisture is present. Its present cultivation is limited, perhaps due to insufficiency of planting materials and the limited knowledge about its culture. The main objective of the study was to establish the possibility of the replacement of urea, the commonly used fertilizer for mushroom cultivation by fish wastewater. The study also aimed to compare the effects of different concentrations of fish wastewater on the growth of mushrooms and determine which treatment produced the best results. A total of five groups were used: two control groups (positive and negative - using urea and water, respectively) and three experimental groups, the latter with different concentrations of fish wastewater serving as alternative fertilizer (A: 10%, B: 20%, C: 30%). Fruiting bags were inoculated with oyster mushroom spawn, and after a month of incubation, the growing mushrooms were assessed using the parameters of number, weight, length, and diameter. Results showed that the weight of oyster mushrooms was heaviest when the substrate was sprayed with plain water. However, the number of mushrooms harvested, their length, and the width of the pilei were not affected by spraying the substrate with urea or moistening these with up to 30% fish wastewater. The conclusions reached were: 1) when using sawdust as substrate for oyster mushroom cultivation, it is best to simply use water to maintain the moisture of the material; 2) sawdust used in combination with low concentration of fish wastewater (10%) can result in good production; 3) neither nitrogen nor urea may be a critical factor for the growth of oyster mushroom on sawdust; and 4) high amount of phosphorus and low potassium content of fish wastewater are favorable for oyster mushroom growth.
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    Effects of Chromolaena odorata leaves as amendments to poultry manure and inorganic fertilizer to improve growth, yield, biomass accumulation and inorganic content of tomato (Lycopersicum esculentum)
    Balinas, Chona Mae D. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2012-04)
    Chromolaena odorata (a weed in the family Asteraceae) has been shown to enhance the buildup of organic matter in a fallow system in tropical soil. Therefore, the aim of this study was to to determine the effects of Chromolaena odorata leaves as an amendment to poultry manure and triple 14 inorganic fertilizer on the growth, yield, biomass accumulation and inorganic contents of Lycopersicum esculentum. The field experiment was conducted at Agsanayan Buenavista Guimaras where the weed has wide distribution. The leaves of C. odorata were air dried and composted using Berkeley method. The compost obtained was used as an amendment to either poultry manure and inorganic fertilizer and was tested on tomato for three months in RCBD. Obtained results proved that tested treatments with amendments of C. odorata were significantly higher in lengths of shoots and roots, flower and fruit yield, amount of biomass accumulated and inorganic contents of tomato than those with no amendments of C. odorata. Therefore, C. odorata is an efficient amendment to both organic and inorganic fertilizers. It was suggested that the weed should be utilized to serve as a green manure.
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    Preparation and characterization of chitin-humic acid hybrid and chitin-humic acid hybrid hydrogel as absorbent for Cu(II)
    Balgos, Blyth Angela C. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2017-06)
    Gelatinous chitin was functionalized with humic acid to produce a chitinhumic acid hybrid. The gelatinous chitin was protonated using HC1 and humic acid was deprotonated by using NaOH in separate containers. The protonated gelatinous chitin and the deprotonated humic acid were then mixed to form Hie chitin-humic acid hybrid. A portion of the chitin-humic acid hybrid was used to prepare the chitin-humic acid hydrogel. The chitin-humic acid hybrid hydrogel was then prepared using 1,2,3,4- butanetetracarboxylic dianhydride(BTCA) as crosslinker. The chitin-humic acid hybrid hydrogel was then characterized using FT-IR and swelling test. The degree of swelling of the chitin-humic acid hydrogel was found to be 38.10 ± 3.06. It can also be inferred from the results of the swelling test that the chitin-humic acid hybrid hydrogel has a low crosslink density. Characterization by FT-IR suggested successful immobilization for the hybrid and BTCA crosslinking for the hydrogel. The potential of chitin-humic acid hybrid and chitin-humic acid hybrid hydrogel to adsorb Cu(II) in a solution was then evaluated. The process was done by subjecting the chitin-humic acid hybrid to Cu(II) adsorption. The results for Cu(II) adsorption test was subjected to a Shapiro- Wilk test for normality and was determined to have normally distributed data. One- sample T-test was then used to compare the adsorption capacity of the hybrid and hydrogel. The mean % Cu(II) Removal of the chitin-humic acid hybrid and chitinhumic acid hybrid hydrogel were 41.36 ± 2.35% and 51.21 ± 1.32%, respectively. Results suggested that the chitin-humic acid hybrid hydrogel has significantly higher % Cu(II) Removal compared to the chitin-humic acid hybrid
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    The effects of RA 9136 (EPIRA) on organizational effectiveness: A descriptive comparative case study of Iloilo Electric Cooperative
    Bagundang, Farizah Joy P. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2012-04)
    The national energy problem led to the reform of the Philippine power industry through RA 9136 of 2001 (EPIRA), aimed at improving energy supply and lowering electricity rates through private sector participation in service delivery. This study examined the case of Iloilo Electric Cooperative (ILECO) 1, one of the largest cooperatives in the Province of Iloilo, in evaluating the effects of institutional reform to organizational effectiveness. The study utilized key informant interviews to obtain primary data on institutional reforms and community survey to gather primary data on ILECO 1’s services and consumer welfare. A total of 132 residential and commercial respondents in the Municipality of Miagao, randomly selected based on the total number of registered businesses and household population of barangay, participated in a community survey. The results posit that centralization, instead of decentralization, improves organizational efficiency. Nevertheless, decentralization improved consumers’ access to electricity while restructuring improved the cooperative’s access to energy supply. However, decentralization and restructuring are ineffective in lowering electricity rates and in responding to consumer complaints. Despite this, survey shows that the cooperative’s performance significantly improved today than five years ago. This study contributes to the understanding of the national problem on energy and on the effectiveness of institutional reforms.
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    Nutritional status of 0-5 year old children of small scale fisherfolks from Barangays along the coastal areas of Miagao, Iloilo
    Ascano, Maria Epifanie; Borromeo, Ma. Benjafe; Luces, Leslie Ann; Napud, Ma. Salve; Sagge, Jasmine; Tarroja, Aireen Joy (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2003-03)
    This special problem sought to determine the nutritional status of 0-5 year old children of subsistence fisherfolks from selected barangays along the coastal areas of Miag-ao, Iloilo. The study incorporated anthropometric, clinical, dietary, and socioeconomic data to detect any nutritional disorder and to ascertain nutriture of 0-5 years old children. There were fifty-six fishermen among the 14 coastal areas which served as basis for determining the number of respondents. Ninety-one children aged 0-5 years old comprised the sample population. This descriptive cross-sectional study employed a probability sampling method named two-stage sampling design. This special study utilized an anthropometric data sheet, clinical assessment sheet, 24-hour food recall sheet, and interview schedule to gather appropriate data. The data collected was then subjected to statistical tools such as means, frequency count/distribution, percentages, ANOVA using the EPI-INFO 6 software and the Fil-Anthrop Software of the FNRI-DOST. Findings revealed that 45.1% of the respondents had an average height for age, 37.4% of the respondents were mildly underweight for age, and 54.9% had an average weight for height. Among the ninety-one respondents, the clinical signs exhibited were lack of luster, thinness, and sparseness; dyspigmentation; pale conjunctiva; thyroid gland enlargement; mottled enamel; dental caries; spongy, bleeding gums; and beading of the rib. Moreover, 82.4% of the respondents were below the Recommended Dietary Allowance. Findings have revealed that there is no association between the nutritional status of respondents (ht. for age, wt. for age, wt. for ht.) and the following variables: (a) Age of 0-5 years old children, (b) Sex of 0-5 years old children, (c) family size, (d) Monthly family income, (e) Highest educational attainment of housewives, (f) Clinical signs, (g) Sanitary practices, (h) Crowding index, (i) Feeding practices of housewives, (j) Presence of toilet facilities, and (k) Source of drinking water.
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    Community structure of mangroves in selected barangays in Sebaste, Antique
    Alorro, Mary Juandin Grace F. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2007-03)
    Mangroves are higher plants that are primarily found predominantly in the intertidal areas such as estuaries and lagoons of the tropical and subtropical shorelines. This study was conducted to assess the community structure of mangroves in Barangay Callan, Barangay Idio, Barangay Poblacion, Barangay Abiera, and Barangay Bacalan, Sebaste, Antique, using the transect line method. Specifically, it aimed to determine selected physical and chemical factors such as salinity, pH, temperature for water and soil as well as characterization of the substrate; identify and classify true mangrove species present in the area; and describe the community structure in terms of stand basal area, stems per hectare, relative density, relative frequency, relative dominance, importance value, Shannon index of diversity, zonation patterns, seedling and sapling density. No study has been done to document the community structure of mangroves in Sebaste, Antique thus, this study was done to provide vital information needed for its proper management. Three stations were selected in Sebaste, Antique. Four (4) species of true mangroves were identified, belonging to three (3) families: Palmae - Nypa fruticans; Rhizophoraceae - Rhizophora apiculata, Bruguiera gymnorrhiza; and Euphorbiaceae - Excoecaria agallocha. The study area had a water salinity range of 0.6 ppt to 15.3 ppt; water temperature range of 28.3°C to 35.4°C; water pH range of 7.1 to 7.7; soil temperature range of 28.3°C to 34.7°C; and soil pH range of 6.5 to 7.2. Basal area ranges from 3.16 m2/ha (Rhizophora apiculata) to 5.88 m2/ha (Excoecaria agallochd) to 8.19 m2/ha (Bruguiera gymnorrhiza) . The species with the highest average of stems per hectare were Excoecaria agallocha and Bruguiera gymnorrhiza with 300 as well as the highest average density value of 100 for Excoecaria agallocha. Nypa fruticans had the highest relative frequency and relative dominance. Among the four species, the most important species was Nypa fruticans. The Shannon Index of Dominance was 0.403 which was quite low in terms of diversity as influenced by the dominance of Nypa fruticans.
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    Television viewing patterns of children in a rural community
    Allones, Christine Marie G; Montalvo, Nica M. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2007-03)
    The general objective of the study is to find out if there is a relationship between TV viewing patterns of children in a rural community and the socio-demographic characteristics such as age, sex, and the parents’ educational attainment. Specifically, it aims to (1) describe the socio-demographic profile of the respondents; (2) determine if there is a relationship between children’s age and their TV viewing pattern; (3) determine if there is a relationship between children’s sex and their TV viewing pattern; (4) determine if there is a relationship between parents’ educational attainment and TV viewing pattern. The data analyzed in this study are obtained through conducting guided interviews with 80 children. The areas included by the researchers in the study are the hours and days of TV viewing of children, their program preferences, their sleeping time, and the frequency of scolding of the parents. It was found that majority of the respondents are 10-12 years olds, males, and have parents who have both high educational attainments. Results reveal that majority of respondents spend between one to five hours watching television everyday. Their usual sleeping time is before or at nine in the evening. Nonetheless, many are scolded for watching television on weekdays but never on weekends. The results of the study concluded that there is a significant relationship between sex and hours of television viewing while age and parent’s educational attainment have no significant relationship in the hours of television viewing. There is no apparent difference between the number of hours of television viewing and the age and parent’s educational attainment. The only difference is that majority of male children watch television for one to five hours a day, while most female children watch more than five hours of TV viewing. Thus, there is a significant relationship between sex and hours of television viewing. On the other hand, there is no significant relationship between the days of TV viewing and the socio-demographic characteristics of the respondents. The researchers recommended that a similar study could be conducted in an urban area, covering a bigger sample size, and using other set of variables that can affect the TV viewing patterns of children. Other researchers are also encouraged to explore the field since there are not so many studies about them in the country.