• Asian Pacific Journal of Cancer Prevention
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• v.17 no.1
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• pp.15-23
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• 2016

Polycyclic aromatic hydrocarbons (PAHs) are primarily formed as a result of thermal treatment of food, especially barbecuing or grilling. Contamination by PAHs is due to generation by direct pyrolysis of food nutrients and deposition from smoke produced through incomplete combustion of thermal agents. PAHs are ubiquitous compounds, well-known to be carcinogenic, which can reach the food in different ways. As an important human exposure pathway of contaminants, dietary intake of PAHs is of increasing concern for assessing cancer risk in the human body. In addition, the risks associated with consumption of barbecued meat may increase if consumers use cooking practices that enhance the concentrations of contaminants and their bioaccessibility. Since total PAHs always overestimate the actual amount that is available for absorption by the body, bioaccessibility of PAHs is to be preferred. Bioaccessibility of PAHs in food is the fraction of PAHs mobilized from food matrices during gastrointestinal digestion. An in vitro human digestion model was chosen for assessing the bioaccessibility of PAHs in food as it offers a simple, rapid, low cost alternative to human and animal studies; providing insights which may not be achievable in in vivo studies. Thus, this review aimed not only to provide an overview of general aspects of PAHs such as the formation, carcinogenicity, sources, occurrence, and factors affecting PAH concentrations, but also to enhance understanding of bioaccessibility assessment using an in vitro digestion model.

• Journal of the Korean Society of Food Culture
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• v.12 no.3
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• pp.289-299
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• 1997

This study was performed with survay in the field and literature. The result were; 1. In Vietnam, They took their meal in three times a day. They have taken Nuoc nam (fish sauce) with sliced red pepper, half a lime, etc... in every day every night. Fish Sauce was prepared with small fish (generally fresh- water fish), the same amount of salt, and stored in 8 months, and made filltered fluid. It's Nuoc mam. They have gained protein sauce from it. 2. Their basic menu were composed with rice, soup, food with marine products and meat (generally pork), various vegetables, tropical fruit. 3. Food of cereals were Com Trang (white rice), Pho (rice noodle), Chao (rice gruel), Banh Trang (rice paper), Banh mi (bread) etc... Food of meat were Ho sua, Banh bao chien (barbecued little pork), Suon Nuon (grilled pork), Cha Lua (sausage of pork) etc..., Thit be nhung (grilled beef, Dog meat, Chicken, Duck, Frog. Food of fish were generally fresh-water fish, Ca Chien (grilled fish), Canh chua (soup with sour taste), Ca chem chung (steamed fish with fragrant vegetable), Lobster, Crab, Oyster, Cuttlefish, Shellfish, etc... Food of vegetables were Doa Hanh (Kimchi with a welsh onion), Rau xao hon hop (roasted vegetables), Goi Tom (salad), Canh he dau hu (soup) etc..., and They took much food of trophical fruit, Tra (Tea), Coffee, Lua Moi (distilled liquor). 4. For example, Their Daily meal were composed of Sup Bong Ca (Soup), Heo Sua, Banh Bao Chien (barbecued little Pork), Top Hap (steamed shrimp), Cua (steamed Crab), Luon Um (bioled a fresh-water eel), Lau Thap Cam, Hai Sam Sac Nam Dong Co, Trai Cay.

• Korean Journal of Community Nutrition
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• v.5 no.4
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• pp.578-585
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• 2000

This study was aimed at examine eating behavior and food preferences of children in preschool nursery facilities. A survey was conducted on parents using questionnaires including general characteristics, eating behavior, and food habits at home and food preferences of children in 6 nursery facilities. The children involved in this study were 150 boys and 154 girls, aged 1 to 7 years old. Sixty three percent(187 children) of the children were on 'regular' meal times, and 37.0%(110 children) were on 'irregular' meal times. The major reason for their irregular meal times were 'their' concentration on other tasks'(26.6%) and 'no appetite'(25.5%). The meal eaten best by children was 'dinner' while that eaten worst was 'breakfast'. The major type of their eating habit problem was 'unbalanced diet'(62.1%), and their mothers' response to the unbalanced diet was 'trying to persuade the child'(71.6%). The number of snacks at home was one or twice a day(97.3%), and 'preference'(67.8%) was the main reason for selecting particular snacks. Their preferred staple foods were 'cooked rice with meat & vegetables and Chinese noodles', and 'noodles with bean sauce', and their preferred soup was 'seaweed soup' Also, their most preferred meat dishes were 'fried chicken' and 'thin sliced barbecued beef. Children preferred side dishes with animal foods to those with vegetable foods. Since children liked mixed dishes, it seems desirable to introduce foods which children dislike as ingredients in mixed dishes.

• Journal of odor and indoor environment
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• v.17 no.4
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• pp.372-380
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• 2018

To abate the problem of odor from restaurants, a hybrid adsorbent consisting of organic and inorganic materials was developed and evaluated using acetaldehyde as a model compound was deveioped and evaluated. Powders of activated carbon, bentonite, and calcium hydroxide were mixed and calcinated to form adsorbent structure. The surface area of the hybrid adsorbent was smaller than that of high-quality activated carbon, but its microscopic image showed that contours and pores were developed on its surface. To determine its adsorption capacity, both batch isotherm and continuous flow column experiments were performed, and these results were compared with those using commercially available activated carbon. The isotherm tests showed that the hybrid adsorbent had a capacity 40 times higher than that of the activated carbon. In addition, the column experiments revealed that breakthrough time of the hybrid adsorbent was 2.5 times longer than that of the activated carbon. These experimental results were fitted to numerical simulations by using a homogeneous surface diffusion model (HSDM); the model estimated that the hybrid adsorbent might be able to remove acetaldehyde at a concentration of 40 ppm for a 5-month period. Since various odor compounds are commonly emitted as a mixture when meat is barbecued, it is necessary to conduct a series of experiments and HSDM simulations under various conditions to obtain design parameters for a full-scale device using the hybrid adsorbent.