• Agribusiness and Information Management
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• v.1 no.1
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• pp.37-62
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• 2009

Web usability for e-commerce sites becomes a more important issue as e-commerce gains its popularity. As for agricultural products, consumers are especially sensitive to the quality of information during transaction process. Successful e-commerce sites of agricultural products, such as Wine.com and Tesco, identified regular usability testing as part of key success factors. This paper aims to identify processes for evaluating usability for e-commerce sites of agricultural products and provide strategies to improve usability. The study aims to evaluate e-commerce usability of selected e-commerce sites using heuristic evaluation to provide objective e-commerce sites usability analysis for each transaction process.

• Korean Journal of Agricultural Science
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• v.36 no.2
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• pp.245-260
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• 2009

Environmentally friendly agricultural products(EFAPs) are on an increasing trend of supply, but not much enhancing the rate of consumption due to higher premiums and consumers' safety concerns. In order to enlarge the consumption of EFAPs and secure the income of the producing farmers, wholesale market should increase the treating amount of EFAPs and introduce traceability system for satisfying consumers' safety concerns. The purpose of this study is to present strategies of traceability system in wholesale market for environmentally friendly agricultural products. For this purpose, current traceability systems that are introduced and managed by government and private association are examined. For the successful management of the EFAPs' traceability system in wholesale market, the trading system, the functions of wholesale market, the level of consumers' safety concerns, and the managing costs should be considered.

• 한국약용작물학회:학술대회논문집
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• 2011.09a
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• pp.224-225
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• 2011

• 한국환경농학회:학술대회논문집
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• 2011.07a
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• pp.291-291
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• 2011

• Analytical Science and Technology
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• v.37 no.2
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• pp.79-86
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• 2024

Among the nutrients in feed, amino acids and minerals are important for the growth and development of pets. In particular, interest in nutritional components related to the health of pets is increasing as pet-raising households and pet food markets have recently grown. Therefore, in this study, 55 pet food products distributed in South Korea were purchased, and the content of 3 essential and conditionally essential amino acids (taurine, lysine, arginine) and 4 minerals (Ca, P, Na, K) was investigated. Among the three amino acids, arginine was found to have the highest content, and the average content was 1.79 and 1.37 % in cat and dog foods, respectively. On the other hand, the taurine content was the lowest, but it was found to be higher than the minimum requirement of 0.10 % for cats set by the American Association for Feed Control (AAFCO) and the European Federation of Pet Food Industries (FEDIAF). As a result of the four-component analysis of minerals, the content of Ca was found to be the highest, and the average content was confirmed to be 1.64 and 1.25 % in cat and dog food, respectively. On the other hand, Na was the lowest, but it was higher than the AAFCO minimum requirement and FEDIAF minimum requirement for young cat and dog food. Among all 55 samples examined, the content of the three amino acids and the four inorganic components was confirmed to be suitable for the recommended minimum intake and maximum allowable intake presented by AAFCO and FEDIAF.

• International Journal of Industrial Entomology and Biomaterials
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• v.46 no.2
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• pp.34-40
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• 2023

As agricultural production increases due to population growth, agricultural by-products that are generated at all production stages increase commensurately. Black soldier fly (BSF) (Hermetia illucens) treatment has potential as an environmentally friendly process to combat the environmental pollution caused by agricultural by-products. This study examined the utilization of BSF larvae in the decomposition of the by-products of apples and mandarins, fruits commonly produced in South Korea. The BSF test larvae were fed apple pomace or mandarin waste, and the control larvae were fed calf feed. Larval weight and size were measured at 4-day intervals until larvae reached the pre-pupal stage. Larval development time, survival rate, and BSF fecundity rate were calculated for all three substrates. Waste reduction and bioconversion ratios were also calculated. The developmental time of larvae fed with apple pomace and mandarin waste was greater than that of the control larvae. The average weight of larvae fed with the fruit by-products was less than that of the control. There was no significant difference in the survival rate of BSF larvae or the fecundity rate of BSF between the substrates used in this study. BSF larvae decomposed 48.0% and 61.5% of apple pomace and mandarin waste, respectively. The bioconversion efficiency rates of BSF larvae fed with apple pomace and mandarin waste were 9.1% and 12.1%, respectively. These results indicated that decomposition of single fruit by-products by BSF larvae is an environmentally friendly and effective bioconversion process.

• Journal of Microbiology and Biotechnology
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• v.32 no.6
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• pp.749-760
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• 2022

α-Galactosidase is a debranching enzyme widely used in the food, feed, paper, and pharmaceuticals industries and plays an important role in hemicellulose degradation. Here, T26, an aerobic bacterial strain with thermostable α-galactosidase activity, was isolated from laboratory-preserved lignocellulolytic microbial consortium TMC7, and identified as Parageobacillus thermoglucosidasius. The α-galactosidase, called T26GAL and derived from the T26 culture supernatant, exhibited a maximum enzyme activity of 0.4976 IU/ml when cultured at 60℃ and 180 rpm for 2 days. Bioinformatics analysis revealed that the α-galactosidase T26GAL belongs to the GH36 family. Subsequently, the pET-26 vector was used for the heterologous expression of the T26 α-galactosidase gene in Escherichia coli BL21 (DE3). The optimum pH for α-galactosidase T26GAL was determined to be 8.0, while the optimum temperature was 60℃. In addition, T26GAL demonstrated a remarkable thermostability with more than 93% enzyme activity, even at a high temperature of 90℃. Furthermore, Ca²⁺ and Mg²⁺ promoted the activity of T26GAL while Zn²⁺ and Cu²⁺ inhibited it. The substrate specificity studies revealed that T26GAL efficiently degraded raffinose, stachyose, and guar gum, but not locust bean gum. This study thus facilitated the discovery of an effective heat-resistant α-galactosidase with potent industrial application. Meanwhile, as part of our research on lignocellulose degradation by a microbial consortium, the present work provides an important basis for encouraging further investigation into this enzyme complex.

• Journal of the East Asian Society of Dietary Life
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• v.15 no.5
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• pp.493-503
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• 2005

This survey was performed to investigate the distribution of specialities which cultivated importantly in Jeollabukdo area in order to understand food culture of this area. Foods in speciality were divided into 4 groups, agricultural, aquatic, animal and the others products. Total number of 93 species of specialities, including 40 species of agricultural products, 29 species of aquatic products, 8 species of animal products and 16 species of the miscellaneous products, were identified from Jeollabukdo area. Especially, there were various fruits and vegetables among agricultural products and fishes among aquatic products in this region. Rice, pepper, pear, Mandarin fish, beef, pine mushroom, lentinus edodes and honey were determined as specialities in Jeollabukdo area. Various aquatic products were specialities in Gochang, Gunsan, Buan and Gimje region. Fruits, mushrooms, wild edible greens and animal products were specialities in Muju, Jangsu, Jeongeup and Jinan. Sweet fish, cat fish and freshwater crab were caught off in Sumjin river region only such as Namwon, Sunchang and Imsil, Recently, pumpkin(Cucurbita maxima) and paprika were determined as specialities in Jeollabukdo. In case of aquatic products, mushrooms and wild edible greens, their wild type products decreased, while cultivated type increased Commercialization by brand naming of agricultural and animal products were rapidly increasing. The kinds of specialities in Jeollabukdo area were changing by the influence of geographical, religious and social factors.

• Korean Journal of Organic Agriculture
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• v.26 no.4
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• pp.559-570
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• 2018

The objective of this study is to investigate the satisfaction and the perception of school food service using environmental-friendly agricultural product of elementary, middle and high school students and parents. We surveyed related to satisfaction of school food service, perception of environmental-friendly agricultural product and perception of school food service using environmental-friendly agricultural product. As a result, the majority of students and parents want to expand the school food service using environmental-friendly agricultural product. Also It was analyzed that the use of environmental-friendly agricultural products would increase school food service satisfaction. In other words, the using environmental-friendly products in school food service experience positive effects thorough school food service, it will give a positive effect on the satisfaction of school food service. As a results of this study contribute to making policy about expansion school food service.

• Food Science of Animal Resources
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• v.40 no.3
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• pp.311-322
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• 2020

This study was undertaken to evaluate the impact of Chinese cinnamon powder (w/w), at the levels of 0.5%, 1.5%, and 2.5% and control (without additive) on ground lamb meat quality. The samples were stored at 4℃ and examined for pH, color, lipid oxidation (thiobarbituric acid reactive substances) and total viable counts (TVC). The results demonstrated that pH values were declined with the increase of Chinese cinnamon levels compared to control group. The L* values throughout the storage were significantly higher (p<0.05) in the control group than in other treatment groups, while a* values were decreased with the increase of Chinese cinnamon levels. The addition of Chinese cinnamon powder strongly inhibited (p<0.05) thiobarbituric acid reactive substances (TBARS) and TVC in all treated samples. It can be concluded that Chinese cinnamon powder in lower concentration 0.5% has the ability to maintain the quality of ground lamb in comparison with other treated samples.