UKM Journal Article Repository
Not a member yet
    21815 research outputs found

    Modification on drying chamber wall of spray dryer towards better yield

    Get PDF
    Spray drying is a widely used industrial process that converts liquid or slurry feed materials into dry powder or granules and it commonly shrouded with the stickiness problem. This study was carried out by response surface methodology (RSM) to minimize fouling during the spray drying process by optimizing the condition of the drying chamber wall of the spray dryer. The concentration (%) and exposure time (min) of polytetrafluoroethylene (PTFE) were examined as independent variables in order to modify the dryer wall. Responses including flux adhesion weight, product recovery, hygroscopicity, and moisture content of the powder were evaluated. Statistical analysis showed that experimental data were best fitted into a quadratic polynomial model with regression coefficient values greater than 0.75 for all responses. The optimum conditions in reducing fouling were discovered at PTFE concentration of 17.27% and PTFE exposure time of 6 min. These conditions would result in low flux adhesion weight (35.28 mg), high product recovery (39.38%), low hygroscopicity (6.08%) and low moisture content (7.97%). The observed outcomes aligned with the predicted values, affirming the suitability of the model in improving the flowability of the spray drying process

    Ethnics in coalition: An analysis of stronghold state level party’s performance and trend

    Get PDF
    Pahang was known as Barisan Nasional (BN) stronghold state due to its capabilities to take over the office in Pahang comfortably from the first General Election (GE) until the 13th GE (2013). Despite its triumph, BN Pahang began to lose its tenacity in the 12th GE (2008) and worsened in the 14th GE held in 2018. As a party that consists of three main component parties, namely, United Malays National Organisation (UMNO), Malaysian Chinese Association (MCA), and Malaysian Indian Congress (MIC) needs to devise a new formula and strategy to rebound their position. Therefore, this article was designed to unravel the interrelation between two main keys, ethnicity and alliance formation, to determine the BN resiliency in Pahang. The approach used in this study was a quantitative method using the data obtained from the Election Commission of Malaysia. The data was then tabulated and displayed on a map using the Geographical Information System (GIS). The study found that BN lost their popular vote to the opposing party by only 41.6% compared to 54.8% in the 13th GE. Besides, the number of seats won by BN declined by 39% compared to the 11th GE (2004). Results show that BN needs to form a strong coalition that consists of diversity in terms of ethnicity to win over the office. This study is substantively for parties to win over the electorate’s heart and promote a good democracy in the country

    In-vitro inhibitory activities of potential probiotic isolated from pangasius nasutus against aeromonas hydrophila and streptococcus agalactiae

    Get PDF
    In aquaculture, using probiotics is crucial for strengthening the immune system and encouraging the growth and survival of many aquatic organisms, including the Pangasius species. This approach is particularly significant given the impact of bacterial diseases on Pangasius survival. This study aimed to assess the effectiveness of probiotics isolated from Pangasius nasutus as alternatives to antibiotics for combating infections caused by Aeromonas hydrophila and Streptococcus agalactiae. Potential bacteria were isolated from the intestine and stomach of healthy P. nasutus. Seventy probiotic strains were successfully isolated and further screened using A. hydrophila and S. agalactiae as pathogens in an in vitro disc diffusion assay. Preliminary screenings indicated that five probiotic strains inhibited the growth of A. hydrophila. Stomach-derived strain S1 and intestine-derived strain L1 suppressed A. hydrophila growth with inhibition zones of 10.5±1 mm and 8.5±1 mm, respectively. Likewise, strains L2, L8, and L12 from the intestine showed inhibitory zones of 6.0±1 mm, 6.5±1 mm, and 6.0±1 mm, respectively. Of these, only L12 inhibited the growth of S. agalactiae with a clear zone of 5.0±1 mm. In the elimination of pathogenic strains, potential strains S1 and L1 did not grow on the Aeromonas isolation medium. Co-culture assays demonstrated that both potential strains significantly inhibited Aeromonas hydrophila growth at concentrations of 106 and 108 CFU mL-1 over 48- and 96-hour periods, respectively. The potential bacterial strains were identified using 16s rRNA gene sequencing and were classified as follows: S1 - Lactococcus lactis, L1 - Weissella confusa, L2 - Cosenzaea myxofaciens, L8 - Lactococcus garvieae, and L12 - Plesiomonas shigelloides. Strain S1 L. lactis and strain L1 W. confusa are suggested for further evaluation and acquired additional research to fully elucidate their mechanisms and potential as probiotics

    Factors influencing users’ satisfaction with online agricultural products in China’s first and second-tier cities under the epidemic

    Get PDF
    The Covid-19 crisis brought with it significant changes to human lives including changes to behaviour. Particularly, the Coronavirus lockdowns and other restrictions contributed to the rise of online shopping for agricultural products in China’s first and second-tier cities. The core aim of the investigation is to evaluate the factors that influence the satisfaction of users with online agricultural products in first and second-tier cities in China during the pandemic. The research methodology is qualitative and relies on interpretivism to examine the experiences regarding the satisfaction of users with online agricultural products in first and second- tier cities in China during the crisis. An inductive approach is applied and the specific data collection instrument in this research entails semi-structured interviews to facilitate a comprehensive inquiry and gain rich insights. Semi-structured interview sessions are conducted with 30 participants including Chinese shoppers who used online agricultural products between 2019 and 2022 just before the Covid-19 crisis or during the pandemic. The research findings indicate that optimism was found to be crucial to the increased consumption of online agricultural products and high quality emerged as the most influential factor behind users’ satisfaction with online agricultural products. However, online agricultural product sellers in China need to ensure excellence in their operations to succeed in the competitive online marketplace. Conclusively, this investigation achieved its overarching aim of evaluating the factors that influence the satisfaction of users with online agricultural products in first and second-tier cities in China during the pandemic

    Engineering students’ lifestyle in a Malaysian Public University during the COVID-19 pandemic

    Get PDF
    Unhealthy lifestyle among university students is an apparent issue in their quality of life. The criticality of this issue is supplemented by reports that students’ lifestyle was severely impacted due to the pandemic and abrupt shift to online learning. This cross-sectional study aims to investigate the lifestyle of engineering students at a Malaysian public university. This paper also seeks to determine gender differences in students’ lifestyles. Questionnaires were distributed to respondents via Google Forms to uncover their eating habits, physical activity, and sleeping habits. Data were collected for three months from four engineering programmes. Simple random sampling was employed, and 120 responses were obtained. The findings revealed that the students have been practising a moderately unhealthy lifestyle; possess average eating habits; are physically inactive, and do not attain sufficient sleep. This study also observed no significant differences between male and female students’ eating and sleeping habits. In contrast, a significant difference was reported between male and female students’ physical activities. The results also determined a moderate correlation between eating habits and sleeping habits and also between eating habits and physical activity. The findings recommend universities implement precautionary measures such as constructing relevant courses and health programmes to raise students’ awareness of the importance of a holistic lifestyle

    A Critical review of women’s consumption and empowerment in China

    Get PDF
    As Chinese women become more educated and participate in the labor force, they earn more money independently. At the same time, thanks to China's one-child policy, women have gained more intergenerational wealth. The economic foundation allowed Chinese women to play bigger power in the consumer market, and a phenomenon called "Her Economy" since 2007. The improvement of discourse power and economic empowerment of Chinese women in the consumer market rendered them better achieve self-empowerment. However, female behavior is also shaped by society, and female consumption is more likely to be influenced by consumer culture and become the background board of consumer society, and women find it difficult to achieve real empowerment through consumption. Although the existing literature has explored this issue, the research field has not been extended to Chinese female consumers, and the theoretical perspective of empowerment is lacking. Thus, this paper reviews women’s consumption and empowerment in China from a critical perspective

    The (Re) construction of househusband’s role in the intern film

    Get PDF
    The role of the male as breadwinner is a common construction in society. However, there are families with certain agreements with particular conditions that require the husband to stay at home with domestic roles. This condition usually addressed the husband as a househusband. This research analyzes signs identified in The Intern film (2015) that portrays the househusband which further interprets the characteristics and roles of the househusband. Roland Barthes’ semiotics method is applied in order to be able to analyse both the denotative and connotative meaning of the identified signs regarding the househusband. From the study, it is identified that there are two roles of househusbands constructed in the film 1) caregiving, and 2) act of service. Househusband duties are identified as everything domestic affairs outside of the public domain. The term househusband is not meaningfully accepted based on the preferences of men carrying out domestic duties, therefore, the term stay-at-home dad is preferred because it constructs the role of the father as a whole

    Tripartite introductions of PGPR, humic acid, and N-fertilizer improve the growth and yield of sweet potato under glasshouse conditions

    Get PDF
    This study was undertaken to investigate the effects of plant growth-promoting rhizobacteria (PGPR) with humic acid (HA) as amendments on the morphological and physiological growth characteristics and yield of Sepang Oren sweet potato (Ipomoea batatas [L.] Lam). The experiment was conducted under glasshouse conditions at the Faculty of Agriculture, Universiti Putra Malaysia, for 110 days. Two factors were used in this experiment: The first factor was PGPR-HA inoculations (UPMB10, UPMRB9, and mixed strains) and non-inoculation-HA, and the second factor was the Nitrogen fertilizer levels (50, 75, and 100%). The treatments were replicated three times and arranged factorially in a randomized complete block design. The results showed that inoculations with PGPRs-HA (UPMRB9 and UPMB10 strains) positively affect the plant growth significantly (SPAD measurements, number of leaves, vine length, root length, leaf area index, root dry weight, shoot dry weight, and root: shoot ratio) of sweet potato upon addition of 50% and 75% of N-fertilizer, respectively. The nutrient content of soil and plant leaf significantly increased by 12-15% and 14-18%, respectively, compared to the uninoculated, when applied with the same inoculation. After 30 days, the population of soil bacteria increased, reaching a value of 8.65 log10 CFU/g soil. The use of PGPR-HA inoculations with N-fertilization resulted in a considerable rise in the majority of plant and soil parameters compared to the treatments without PGPR inoculation. Therefore, PGPR supplemented with humic acid (HA) may be considered a viable and sustainable strategy for enhancing sweet potatoes’ morphological and physiological attributes. This technique can result in increased crop productivity and serve as a substitute for nitrogen-based fertilizers

    Effect of food waste on the growth performance, waste reduction efficiency and nutritional composition of black soldier fly (Hermetia illucens (L.), Diptera: Stratiomyidae) larvae

    Get PDF
    The rate of solid waste generation, especially in Malaysia, has become one of the major concerns for environmental and public health issues. Food waste accounts for the highest percentage of solid waste that ends up in landfills. Due to the living nature of humans and their involvement in agricultural, industrial, and municipal activities, the disposal of food waste happens on a regular basis. Due to the absence of an incineration plant, these wastes are commonly sent into landfills which are considered to be the most cost-effective method for disposal. Nevertheless, consideration for an alternative disposal method such as composting shall not be ruled out entirely. One of the established methods for composting food waste is the utilization of the larvae of the Black Soldier Fly. A study was conducted to assess the growth and nutritional composition, waste reduction capacity and nutritional composition of Black Soldier Fly Larvae (BSFL) reared on food waste. We found that the larvae reared with the food waste and effective microorganism (EM), LFWEM (BSFL reared with a mixture of food waste and effective microorganisms), have a slightly better relative growth rate (2.66 ± 0.35 day-1) compared to larvae reared with only food waste (2.44 ± 0.17 day-1). The waste reduction index was higher in the LFWEM group (5.36 ± 0.18 g/day) compared to the control group, LFC (BSFL reared with chicken feed) (4.85 ± 0.03 g/day) and the LFW (BSFL reared with food waste) group (5.13 ± 0.17 g/day). The nutritional composition of the BSFL reared using food waste shows some potential as it surpasses some of the amount of essential amino acids including Arginine, Histidine, Threonine and Valine, found in the commercially available animal feeds. This finding serves as a baseline to propose potential replacements for animal protein by using BSFL reared with food waste

    Physicochemical, microbiological and organoleptic properties of cowpeas (Vigna unguiculata) yoghurt with the addition of gotu kola leaf (Centella asiatica (L.) Urban) extract

    Get PDF
    Cowpea yogurt is a functional food product made from cowpeas and gotu kola leaves. This mixture of cowpeas and gotu kola leaves is expected to increase its functional value i.e., protein and antioxidant activity. This research aims to analyze the physicochemical, microbiological, and organoleptic properties of cowpeas yogurt with the addition of gotu kola leaf extract. The study used a Completely Randomized Design (CRD) with one factor, with the ratio of cowpea’s milk: gotu kola leaf extract, namely F1 (98%: 2%), F2 (96%: 4%), F3 (94%: 6%), K2 (100%: 0%), and K1 (100% pure milk). Testing parameters include viscosity, pH value, (moisture, ash, fat, protein, carbohydrate) content, antioxidant activity, total lactic acid bacteria, and organoleptic (color, aroma, taste, texture). The results showed that the highest pH and viscosity values in K2 were 3.77 and 419.59 cP; the highest moisture content in F3 was 85.04%; the highest ash, fat, and carbohydrate content in K2 were 0.62%, 1.87%, and 10.21%; the highest protein content in F1 was 3.25%; the highest antioxidant activity in F3 with an IC50 value of 87.008 ppm; the total lactic acid bacteria in K2 met the minimum SNI requirements of 107 CFU/mL; and K2 showed the most favorable overall organoleptic test. This study shows that the addition of gotu kola leaf extract affects on the physicochemical, microbiological, and organoleptic properties of cowpea yogurt


    full texts


    metadata records
    Updated in last 30 days.
    UKM Journal Article Repository is based in Malaysia
    Access Repository Dashboard
    Do you manage Open Research Online? Become a CORE Member to access insider analytics, issue reports and manage access to outputs from your repository in the CORE Repository Dashboard! 👇