• Title/Summary/Keyword: Food products

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Nonthermal Sterilization of Animal-based Foods by Intense Pulsed Light Treatment

  • Gyeong Mi Lee;Jung-Kue Shin
    • Food Science of Animal Resources
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    • v.44 no.2
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    • pp.309-325
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    • 2024
  • The consumption of meat has been increasing, leading to a dynamic meat and meat processing industry. To maintain the quality and safety of meat products, various technologies have been explored, including intense pulsed light (IPL) technology. Several factors affect the inactivation of microorganisms by IPL treatment, including light intensity (fluence), treatment duration, pulse frequency, and the distance between the lamp and the samples. Meat products have been studied for IPL treatment, resulting in microbial reductions of approximately 0.4-2.4 Log. There are also impacts on color, sensory attributes, and physico-chemical quality, depending on treatment conditions. Processed meat products like sausages and ham have shown microbial reductions of around 0.1-4 Log with IPL treatment. IPL treatment has minimal impact on color and lipid oxidation in these products. Egg products and dairy items can also benefit from IPL treatment, achieving microbial reductions of around 1-7.8 Log. The effect on product quality varies depending on the treatment conditions. IPL technology has shown promise in enhancing the safety and quality of various food products, including meat, processed meat, egg products, and dairy items. However, the research results on animal-based food are not diverse and fragmentary, this study discusses the future research direction and industrial application through a review of these researches.

A Collaborative Study to Establish the Second Korean National Reference Standard for Snake Venom

  • Han, Kiwon;Jung, Kikyung;Oh, Hokyung;Song, Hojin;Park, Sangmi;Kim, Ji-Hye;Min, Garam;Lee, Byung-Hwa;Nam, Hyun-sik;Kim, Yang Jin;Ato, Manabu;Jeong, Jayoung;Ahn, Chiyoung
    • Toxicological Research
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    • v.34 no.3
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    • pp.191-197
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    • 2018
  • In 2015, a candidate for the second national reference standard (NRS) of Gloydius snake venom was produced to replace the first NRS of Gloydius snake venom. In the present study, the potencies of the candidate were determined by a collaborative study, and the qualification of the candidate was estimated. The potencies of the candidate were determined by measuring the murine lethal titers and lapine hemorrhagic titers of venom against the regional working reference standard (RWRS) for antivenom using the methods described in the previous report for the first NRS of Gloydius snake venom. Three Korean facilities contributed data from a total of 30 independent assays. Subsequently, two foreign national control research laboratories contributed to this collaborative study. The results were calculated using the Reed-Muench method for lethality and determined using a mixed-effects model for hemorrhage. The general common potencies of the lethal and hemorrhagic titers were obtained from the results of the 30 tests performed at three Korean facilities. The results are expressed in micrograms for 1 test dose (TD) with a 95% confidence interval as follows: a lethal titer of $90.13{\mu}g/TD$ (95% confidence interval = $87.39{\sim}92.86{\mu}g$) and a hemorrhagic titer of $10.80{\mu}g/TD$ (95% confidence interval = $10.46{\sim}11.14{\mu}g$). In addition, the candidate preparation showed good quality evaluation according to the results of the quality estimation of the candidate and is judged to be suitable to serve as the Korean NRS for snake venom. In conclusion, the second NRS of Gloydius snake venom was established in this study and will be used for national quality control, including a national lot release test of Korean antivenom products.

Non-Timber Forest Products Consumption Behaviors According to Dietary Lifestyle (식생활 스타일에 따른 단기소득임산물의 소비행태)

  • Yoo, Hyun Jung;Song, Eugene
    • Human Ecology Research
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    • v.54 no.1
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    • pp.107-118
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    • 2016
  • This study examined differences in consumers' images of short-term income forest products, preference, willingness to pay prices and purchase behavior according to dietary lifestyle as well as investigated what factors influence the degree of satisfaction when purchasing short-term income forest products and willingness to repurchase. According to dietary lifestyle, the results classified consumers as 'frugal housewife type,' 'convenience-seeking type,' and 'food high-involvement type.' A 'food high-involvement group' is defined as a group that wants high quality products regardless of price. In the 'frugal housewife type,' country of origin and hygiene/safety (considered when purchasing food) had positive influences on the degree of satisfaction. In the 'convenience-seeking type,' country of origin (considered when purchasing food) had a positive influence on the degree of satisfaction while country of origin (checked when purchasing food) had a negative influence on degree of satisfaction. Consumers had a lack of perception for short-term income forest products; subsequently, short-term income forest products had a weakness of low access to consumers. Therefore, farms for short-term income forest products need to divide products into 'high-priced' luxury products and 'low-priced' frugal products according to dietary lifestyle characteristics, improve packaging status to enable consumers to check quality certificates, and clearly indicate country of origin as well as improve distribution processes and increase consumer access to products.

Introduction to the Technology, Applications, Products, Markets, R&D, and Perspectives of Nanofoods in the Food Industry

  • Kim, Dong-Myong;Lee, Gee-Dong
    • Preventive Nutrition and Food Science
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    • v.11 no.4
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    • pp.348-357
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    • 2006
  • Nano is a unit that designates a billionth; accordingly nanotechnology could be described as the study and applications of the unique characteristics and phenomena of nanometer size materials. Applications of nanotechnology fall into two categories (one is top-down and the other is bottom-up). Currently, most products are the results of the top-down approach. Nanofoods have distinct functional characteristics stemming from the size, mass, chemical combinations, electrolytic features, magnetic properties of food sources at the nano level and which can be applied for safe absorption and delivery into the body. The greatest advantage of nanofood is that it permits the efficient use of small quantities of nutritional elements by increasing digestive absorption ability and by delivering natural elements without any change in their original characteristics. On the other hand, there are still unsolved problems, such as questions about safety and introduction of harmful material. The demand for new commercial food products is increasing, and commercial food producers are gradually combining nanotechnology and traditional food preparation methods. Nanofoods will improve our eating habits remarkably in the future. Tomorrow we will design nanofoods by shaping molecules and atoms. It will have a big impact on the food and food-processing industries. The future belongs to new products and new processes with the goals of customizing and personalizing consumer products. Nanotechnology is expected to be applied to not only foods themselves, but also to food packaging, production, safety, processing and storage. Also, it is believed that nanotechnology will be applied tracking finished products back to production facilities and even to specific processing equipment in those facilities. The aim of this study is the introduction of technology, applications, products, markets, R&D, and perspectives of nanofoods in the food industry.

Stability Evaluation of National Reference Standards for Blood Products in Korea

  • Park, Tae Jun;Choi, Chan Woong;Oh, Ho Kyung;Kim, Jae Ok;Kim, Byung Kuk;Kang, Hyun Kyung;Kwon, Eun Jeong;Gweon, Eun Jeong;Park, Sang Jin;Kang, Ho Il;Jung, Ki Kyung;Park, Sang Mi;Kim, Ji Hye;Han, Ki Won;Jeong, Ja Young
    • Toxicological Research
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    • v.33 no.3
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    • pp.225-231
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    • 2017
  • National reference standards (NRSs) for biologics are established through potency estimation by a multi-center joint study of standard materials used in the approval process for national lot release and quality control of vaccines, blood products, and other biologics. In this study, a stability evaluation was conducted to determine whether the potency of NRSs for six blood products was being maintained at a consistent level in Korea. The present study conducted real-time stability tests via in-vivo/in-vitro bioassay on NRSs for blood coagulation factor VIII concentrate (2nd standard), antithrombin concentrate, prekallikrein activator, anti-hepatitis B immunoglobulin, blood coagulation factor IX concentrate, and anti-tetanus human immunoglobulin, as well as a trend analysis using cumulative annual results. The real-time stability test results showed that the mean potency of six NRSs was all within the control limit. In the trend analysis, the potency of NRS for blood coagulation factor VIII concentrate (2nd standard) showed a decreasing trend, while the potency of all other products had been stably maintained. The present study confirmed that the mean potency of NRSs for six blood products had been stably maintained in Korea. The findings of the present study establish a foundation that can ensure the quality of NRSs for biologics in Korea, and it is expected to make a major contribution to the supply of high-quality biologics.

The study of the uses of agricultural products in the "Kyuhap-Chongseo" ("규합총서" 에 나타난 농산물 이용 고찰)

  • 김미희;유명님;최배영;안현숙
    • Journal of Families and Better Life
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    • v.21 no.1
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    • pp.113-127
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    • 2003
  • This paper aims to provide the basic data about the uses of agricultural products related to food, cloth and shelter in the late Joseon Dynasty by analysing$\ulcorner$Kyuhap-Chongseo$\lrcorner$(1809). The results of this study are as follows: 1. The agricultural products related to cloth, food and shelter were of 95 species total(horticultural crops 37.9%, industrial crops 22.1%, food crops 13.7%, floricultural crops 13.7%. and animal products 12.6%). 2. The agricultural products(24species) related to clothing were used for weaving, dyeing, laundering and starching textiles. 80 species of agricultural products were used as ingredients in about 140 dishes. As for shelter, the agricultural products(30species) were used for making stationaries. managing vessels and illumination, and building structures.

Phenomenological Study on the Purchase Experience of HMR Products in Baby Boom Generation (베이비붐 세대의 HMR 제품 구매경험에 관한 현상학적 연구)

  • Jeong, Seong Ho;Han, Kyung Soo
    • Journal of the FoodService Safety
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    • v.2 no.1
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    • pp.22-29
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    • 2021
  • This research has conducted one-on-one depth interviews targeting baby boomers who are economically active; It seeks to analyze the purchase factor of HMR products to deduct conclusion. The result of the research deducted through depth interviews is as follows. First, baby boomers described HMR products as a reliable meal. Second, baby boomers described HMR products as a cold-hearted meal. Third, baby boomers described HMR products as a habitual meal. Fourth, baby boomers described HMR products as lacking. Fifth, baby boomers thanked to HMR products. The research deducted the conclusion about the HMR products' purchase factor through one-on-one depth interviews. Additionally, the research showed a potential direction for the research and development of HMR products.

A Study on Satisfaction of School Food Service Using Environment-friendly Agricultural Products (친환경농산물을 활용한 학교급식 만족도 조사)

  • Han, Byeol;Kim, Ho;Yang, Sung-Bum
    • 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.