• Korean Journal of Fisheries and Aquatic Sciences
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• v.45 no.1
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• pp.1-10
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• 2012

The objective of this study was to investigate the sanitary and nutritional requirements for the industrialization of commercial kwamegi from Pacific herring Clupea pallasii (CK-PH). The proximate composition of CK-PH was 46.4-47.2% moisture, 24.7-25.6% crude protein, 23.6-25.2% crude lipid, and 2.5-2.9% ash, which differed significantly from that of commercial kwamegi from the Pacific saury Cololabis saira. According to the volatile basic nitrogen content, heavy metal content, and viable cell and coliform group counts, products K and F (prepared by a general process) maintained their freshness, whereas product T (treated with green tea extract) did not. Products K and F contained five types of biogenic amine: agmatine sulfate (2,596 and 2,067 mg/kg, respectively), putrescine dihydrochloride (8.5 and 8.0 mg/kg, respectively), cadaverine (3.7 and 3.9 mg/kg, respectively), histamine (17.0 and 12.4 mg/kg, respectively), and spermidine (8.7 and 8.0 mg/kg, respectively). Product T contained six amine types: tyramine (12.5 mg/kg), agmatine sulfate (2,723 mg/kg), putrescine dihydrochloride (29.4 mg/kg), cadaverine (321.6 mg/kg), histamine (45.3 mg/kg), and spermidine (13.6 mg/kg). The total amino acid content of product K (22.16/100g) was 5.8% lower than that of product F. The major amino acids of products K and F were aspartic acid, glutamic acid, leucine, and lysine. No difference was found in the fatty acid composition of products K and F. The major fatty acids in products K and F were 18:1n-9, 20:5n-3, and 22:6n-3. Based on the recommended daily dietary allowances for Koreans, the significant minerals in products K and F were calcium, phosphorus, and magnesium.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.47 no.1
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• pp.1-11
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• 2014

This study was carried out to investigate nutritional and physiologically active characterizations of sikhae and the seasoned products from the sea squirt Halocynthia roretzi. The total taste values of sikhae fermented for 4 and 5 days were 10.9 and 15.4, respectively, which was lower than for commercially seasoned sea squirts. The sikhaes contained mostly glutamic and aspartic acids. The total amino acid contents of sikhaes fermented for 4 and 5 days were 5.5 and 6.0 g/100 g, respectively, which were lower than those of commercial seasoned-sea squirts or similar. An amount of 100 g of sikhae and its seasoned products contained P, K, Mg and Fe, and these minerals, which are deemed good for our health, were at 10% above the recommended daily requirements. The functional properties of sikhae fermented for 4 and 5 days were as follows: for ACE inhibiting activity, 69 and 69.5%, respectively; for antioxidative activity, 28.9 and 29.3%, respectively; for xanthine oxidase inhibitory activity, 52.8 and 53.1%, respectively; and for ${\alpha}$-glucosidase inhibitory activity, 2.4 and 1.4%, respectively. Antimicrobial activity of the 5 day fermented sikhae against Vibrio parahaemolyticus and Staphyloccus aureus was detected in 8 mm and in 7 mm against Escherichia coli.

• Journal of the Korean Society of Food Culture
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• v.6 no.2
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• pp.175-184
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• 1991

To identify the eating behaviour of customers at a hotel buffet styled restaurant, a survey was conducted. The age range of the respondents was 6 through 70, but consisted mainly people in their twenties, thirties, and forties of the respondents, 65.1% were female. The occupation ranged from student 30.3%, housewife 27.2%, office worker 19.3%, professional 17.3%. 43.9% of respondents visited buffet styled restaurant 1 to 2 times every three or four months. Some respondents had a positive opinions: they had many choices in food selection, they could take and choose as much as they wanted, the appearance and the arrangement of the food was great, etc. But some also had negative attitudes(i.e. unhappy with self service and expensive prices). Of the respondents, 31.1% said they visited the buffet styled restaurant was for family parties and the average number of the party member was $9.3{\pm}4.3$. The average time period of eating was 1 hour $32{\pm}26$ minutes. The average frequency of taking food was $3.7{\pm}1.2$. The average frequency of taking food after satiety was $1.2{\pm}0.8$. The first selection of the buffet service food was soup 23.9% of the respondents and salad 23.9%. Females chose more of the soups and salads the males chose more of the meats and seafoods. The standard of food selection was 70.7% of 'my favorite'. This tells customers' low cognition level of desirable food selection and the order of a meal. 64.0% of the respondents responded overeating, from mild and extreme. We think that information on nutrition education and health problems are necessary. For better service, 82.9% wanted to lower the price by decreasing similar items. Respondent wanted; one, to increase more Korean food items and make a traditional Korean buffet styled restaurant, two, to use more seasonal food and decrease the redundant food items to reduce the price, and three, to have different price rates according to the age or gender of the grown ups.