• Title/Summary/Keyword: Food studies

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Food-Effect Bioavailability and Fed Bioequivalence Studies (생체이용률에 미치는 음식물의 영향 및 식후 생물학적동등성시험)

  • Choi, Sun-Ok;Jung, Sung-Hee;Um, So-Young;Jung, Seo-Jeong;Kim, Joo-Il;Chung, Soo-Youn
    • Journal of Pharmaceutical Investigation
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    • v.34 no.3
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    • pp.223-228
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    • 2004
  • A new medical system was started in Korea in 2000 and pharmaceutical affairs law was revised in 2001. According to the revised law, generic substitution is permitted only to the drug products which are proven to be bioequivalent to the reference listed drugs. To expand the list of bioequivalence-proven drug products and to ensure the credibility of the therapeutic equivalence of generic drug are the hot issues in Korea. Also, the KFDA has a plan to revise the pharmaceutical affairs law that bioequivalence reports of all the generic prescription drug products should be submitted to the KFDA for drug approval after July in 2004. Therefore, it is increasing the necessity to develop the bioequivalence-demonstrating methods for specific drug substances and preparations which require to conduct food-effect bioavailability or bioequivalence study. There are some differences between US and Japanese guidances of food-effect bioavailability and bioequivalence studies. In this paper, we examined the recently published US guidance about food-effect study and it will be a reference to make our own guidance about food-effect bioavailability and bioequivalence guidances in Korea.

A Case Study of Food Insecurity Experiences of Poor Households with children (아동이 있는 빈곤 가구의 식품 미보장 경험에 대한 질적 연구)

  • Jeong, Jeong Ho
    • Korean Journal of Social Welfare Studies
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    • v.43 no.2
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    • pp.31-60
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    • 2012
  • This case study tried to explore the food insecurity experiences of poor households with children, since 'food insecurity experiences' of poor households represents economic inequality and social deprivation in the midst of a affluent society. Interviewees in this reports reported that they have found difficulties with buying right or enough food materials due to short of income. As well, they have usually experienced the selection and use of only low-grade foods, substitution for more cheap food materials, limitation of available food materials(especially, meats and fruits), and monotonous diets in their everyday lives. Sometimes, their children skipped their meals due to their monotonous diets. To sum up, I could identify that they(poor households with children) had experienced many components of 'food insecurity' constructs in their daily lives. In spite of, there are some distinction between reports through food insecurity scale and records of interviews and the various foods-supply programs have supplemented their food insecure situation. Therefore, we should give consideration to these in the use and interpretation of the results of food insecurity scales.

Flavonols, Flavones, Flavanoues and Human Health: Epidemiological Evidence

  • Graf Brigitte A.;Milbury Paul E.;Blumberg Jeffrey B.
    • Proceedings of the Korean Society of Food Science and Nutrition Conference
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    • 2004.11a
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    • pp.24-36
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    • 2004
  • Polyphenolic flavonoids are among a wide variety of phytochemicals present in the human diet. Basic research, animal model, and human studies suggest flavonoid intake may reduce the risk of several age-related chronic diseases. The vast number of flavonoids and mixtures of their subclasses, including flavonols, flavones and flavanones, and the variety of agricultural practices that affect their concentration in foods have presented a challenge to the development of adequate food composition databases for these com-pounds. Nonetheless, dietary assessments have been applied to cohort and case-control epidemiological studies and several reveal an inverse association with risk of some forms of cancer, cardiovascular disease, and other chronic conditions. Those observational studies that have examined these relationships with regard to flavonols, flavones, and flavanones are reviewed. The requirement for caution in interpreting these studies is discussed with regard to the limited information available on the bioavailability and biotransformation of these flavonoids. As the totality of the available evidence on these flavonoids suggests a role in the prevention of cancer and cardiovascular disease, further research is warranted, particularly in controlled clinical trials.

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Effect of Feed Allowance on Selection, Intake and Nutrient Utilization of Green Maize (Zea mays) by Goats

  • Dutta, N.;Sharma, K.;Hasan, Q.Z.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.4
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    • pp.483-486
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    • 2000
  • The influence of feed allowance on intake and nutrient utilization by Barbari goats given green maize (Zea mays) and potential feeding value of left-overs were studied. The goats were offered food at 3 levels to give left-overs of about 20% (T-1), 35% (T-2) and 50% (T-3) DM of offered amount. A marked effect of refusal rate on intake and digestibility of nutrients was found. The DMI, g/kg $W^{0.75}$ increased from 39.86 in T-1 to 50.91 and 66.55 g in groups T-2 and T-3, respectively. Allowing selective consumption at higher levels (T-2 and T-3), the intake of TDN and DCP from green maize was found not only to meet the maintenance requirement but provided surplus energy and protein for substantial production. The variability in diet selectivity between goats under different treatments was pronounced. As the level of food excess increased to T-3, the left overs had a higher IVDMD and crude protein and decreased cell wall constituents (p<0.05). Considering the substantial increase in intake and digestibility from feeding green maize at high allowances to goats, further studies are needed to develop practical feeding strategies.

Toxicity studies on Trigonella foenum-graecum L. seeds used in spices and as a traditional remedy for diabetes

  • Al-Ashban, R.M.;Abou-Shaaban, R.R.;Shah, A.H.
    • Advances in Traditional Medicine
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    • v.10 no.2
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    • pp.66-78
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    • 2010
  • Acute (24 h) and chronic (90 days) oral toxicity studies on the ethanol extract of Trigonella foenumgraecum Leguminosae (L.) seeds were carried out. Acute dosages were 0.5, 1.0 and 3 g/kg while chronic dosage was 100 mg/kg per day of the extract. All morphological, biochemical, haematological and spermatogenic changes, in addition to mortality, body weight changes and any change in vital organs were recorded. Histopathological investigations were done on vital organs. Growth arrest in the treated animals was observed. The treated mice gained no significant weight during chronic treatment while there was a significant gain in body weight of the control group mice. Biochemical studies revealed a significant decrease in blood sugar levels of fenugreek treatment groups while haematological parameters remained comparable to the control. In the treatment, male group there was a significant decrease in weight of testes as compared to the control. There was a marginal weight gain in kidney weight of mice after chronic treatment as compared to the control. Fenugreek chronic treatment caused a highly significant spermatotoxic effects in male mice.

Prevention of Inflammatory Bowel Disease using Fermented Milk Including Probiotics (프로바이오틱스 섭취를 통한 염증성 장 질환의 완화)

  • Lee, Jin;Yun, Hyun-Sun;Kim, Sae-Hun;Jeon, Woo-Min
    • Journal of Dairy Science and Biotechnology
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    • v.28 no.2
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    • pp.25-30
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    • 2010
  • For centuries, probiotics have been known to promote health and prevent diseases. In recent times, modulation of diseases related to the immune function by probiotics has been recognized as very important to the health of the host's gut. Inflammatory bowel diseases (IBDs) are the most frequently studied diseases in which probiotic administration has been tested as a potential therapy. Various in vitro and in vivo studies have been performed. The studies discussed in this review suggest several mechanisms: probiotics could modulate the gut microflora by competing with disease-causing pathogenic bacteria and could directly regulate the mucosal immune system, which activates the innate and adaptive immune systems. In addition, human clinical trials have shown alleviation of disease symptoms of ulcerative colitis (UC), Crohn's disease, etc. This study aimed to understand the molecular mechanisms underlying immune modulation by probiotics and review studies on the functional aspect of IBD alleviation by probiotics. With more scientific studies confirming the effect of probiotics, this therapy holds promise for use in alternative medicine and/or pharmaceutical preparations, given the long history of safe consumption of probiotics.

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Microplastics in Processed Food: New Threats to Food Safet (가공식품에서의 미세플라스틱: 새로운 식품안전에 대한 위협)

  • Jihoo Kim;Hyeyoung Lee;Dong-Seob Kim;Chung-Yeol Lee;Heeseob Lee
    • Journal of Life Science
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    • v.33 no.2
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    • pp.216-226
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    • 2023
  • Since nylon 66, a polyamide resin, has been developed and applied to toothbrush bristles, plastic consumption has increased rapidly every year, along with the increase in the amount of plastic discarded. Among the various forms of plastic debris produced by the decomposition of plastics, microplastics with a size of less than 5 mm are widely distributed in the environment, which poses a threat not only to the environment but also to animals and humans. The pathway through which microplastics enter the human body is known as ingestion by water and food, inhalation from air, and skin contact. Microplastics introduced into the human body affect human health. Recently, food-related studies have begun to be reported among microplastics-related studies, and analyses of the presence of microplastics in processed foods, such as canned foods, dried seaweed, beverages, beer, milk, sugar, and honey, are underway. Here, we present trends in the production and consumption of plastics, the generation of microplastics, the route of human inflow and human risk, and the microplastics present in processed foods, which are limited but have recently been reported. Thus far, studies on microplastics and risk assessment in processed foods have been insufficient, but microplastics are gradually being recognized as a factor that affects the environment and food. Future studies are expected to have implications for regulations regarding microplastics present in processed foods.

Background and Prospect for the Commercialization of Food Irradiation (식품조사(食品照射) 실용화(實用化)에 대한 배경(背景)과 전망(展望))

  • Kwon, Joong-Ho
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.14 no.1
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    • pp.88-94
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    • 1985
  • Food irradiation is increasingly recognized as the sole viable alternative to traditional method of food preservation in terms of reducing the overall quantity of spoiled food, reducing energy used in food storage, and reducing reliance on chemicals known to be hazardous but currently required for disinfestation. Irradiation with ionizing radiation can be applied in the fields of sprout inhibition, disinfestation of insects, sterilization, delay of ripening, and improvement of organoleptic properties in food. In order to back up the commercialization of food irradiation in Korea, this review not only dealt with the international background for food irradiation and wholesomeness of irradiated food, but also evaluated economic feasibility of irradiated food, irradiation facilities, and domestic status of food irradiation studies.

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Meta-analysis of Studies and Patents on Korean ginseng in Recent 5 Years in Korea and Prospective Needs (국내 인삼 연구 현황 및 미래 수요 예측; 최근 5년간 농학.식품학 및 약리학을 중심으로)

  • Park, Soo-Jin;Cho, Yang-Jin;Pyee, Jae-Ho;Hong, Hee-Do
    • Journal of Ginseng Research
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    • v.30 no.4
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    • pp.212-219
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    • 2006
  • Research literatures (e.g. research report, scientific paper and thesis, published between 2001 and 2005) of 332 collected from KISTI, KISS, ARPC databases were investigated and analyzed to give an overview of domestic ginseng researches. Most of recent ginseng researches have been performed by private nonprofit institutions and individuals, which suggests that a role of public institution fur ginseng researches needed to be enlarged. In terms of research fields, cultivation and agricultural researches have been mainly accomplished in ginseng research. Cell physiology and reproductive function researches occupied large part of pharmacological studies, but clinical studies were relatively limited. Studies on general food products development have taken the main part in fields of food products including functional foods. As the result of analysis of 312 domestic ginseng patents by classifications of world international property organization (WIPO), it was categorized into food technology, medicinal fermentation development technology, fermentation technology, and agriculture-fisheries technology. This integrated overview of the widely scattered ginseng literatures shows current general research trends in Korea and will be able to suggest further needs on cultivation, studies and industralization of ginseng.