• 한국조리학회지
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• 제23권8호
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• pp.206-215
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• 2017

Sprout ginseng paste were prepared with pine nut, dry oyster and dry shrimp to examine the antioxidant properties(total polyphenols, total flavonoids, and electron donating ability) and sensory test(attribute difference and acceptance). Sprout ginseng paste were measured based on color value, pH, viscosity, total bacteria cell numbers for 0 and 20 days at $4^{\circ}C$. The higher total polyphenol and total flavonoid content of sprout ginseng paste added with pine nuts, dry oyster, and dry shrimp were higher antioxidant capacity. DPPH radical scavenging activity was increased from 52.2% (SGP0) to 79.5.0 % with SGP5. The attribute test results reveal that the color intensity, bitter taste, and oily taste were decreased in SGP3 to SGP6. Taste, flavor, and coarseness did not show significant difference in SGP0 to SGP6. Thickness and After taste were increased in SGP4 to SGP6. The preference test results reveal that the appearance, flavor, and texture level did not show significant difference in SGP0 to SGP6. Taste and overall preference were increased in SGP4 to SGP6. L value, pH, decrease while a value and b value show no change in sprout ginseng paste with pine nut, dry oyster and dry shrimp. Total cell number was not detected during storage.

• 한국식품영양학회지
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• 제11권4호
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• pp.402-408
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• 1998

A rapid processing method for fermented sauce of favorable flavor was investigated with low-usefulness marine resources. Hydrolyzed at optimal conditions for 6 hours usuing alcalase, and separated by molecularporous membrane. It's very effective for remove bitter taste at below M.W. 100 dalton, and effective at below M.W.500 dalton. Added 2% invert sugar in fermented sauce at below M.W.500 dalton, and thermal treatment at 100$^{\circ}C$ for 30 minutes were improved flavor. Chemical composition of fermented sauce using hair tail were 80.7% of moisture, 2.2% of carbohydrate, 1.8% of total nitrogen, 1.6% of amino nitrogen and pH was 6.5. The ratio of amino nitrogen in total nitrogen was 77.8%. And chemical composition of fermented sauce used gizzard shad, kangdale, pen shell and oyster were similar to fermented sauce used hair tail. Total nitrogen were above 1.8% and the ratio of amino nitrogen in total nitrogen was 77.7∼84.2% in all fermented sauce. Amino acid contents in fermented sauce used hair tail, gizzard shad, kangdale, pen shell and oyster were 4,318.1mg%, 4,681.3mg%, 3,156.2mg% and 4,175.0mg%, respectively. And the predominant free amino acid were glutamic acid, lysine and glycine in all fermented sauce.

• 한국수산과학회지
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• 제42권3호
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• pp.197-203
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• 2009

This study was conducted to investigate the food components of cooking drips from shell oysters steamed under various retort pressures. Among the drips from shell oyster steamed under different retort pressures (1.0, 2.0, 2.5, 3.0, 3.5, 4.0 and 4.5 kg/$cm^2$) the oyster drip obtained at the 4.5 kg/$cm^2$ of retort pressure had the highest degree of brix, yield, crude protein, glycogen and trichloroacetic acid soluble-N contents, while its salinity was the lowest. In the results of food safety test, the presence of E. coli (18 MPN/100 g>) and viable cell (30 CFU/g>) in the oyster drip was in acceptable level as a food-stuff. However, the sensory evaluation such as color, flavor and taste, total amino acid and free amino acid contents of cooking drip from shell oyster steamed at 4.5 kg/$cm^2$ were inferior to those of oyster wash water. Differences in the major amino acids of total amino acid and free amino acid between oyster cooking drip and oyster wash water were also found. The results suggested that the effective use methods of oyster cooking drip should be investigated.

• 한국버섯학회지
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• 제16권3호
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• pp.131-139
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• 2018

큰느타리버섯은 에르고스테롤 및 글루칸과 같은 기능성 물질의 함량이 높아 항산화 활성 및 프리바이오틱 효과를 일으키는 버섯이다. 큰느타리버섯은 향이 강하며 단단해 기호도가 높지만 장기간 소요되는 선박수출 등에서는 선도유지 기간 확보가 필요하다. 버섯의 품질에 영향을 미치는 외부요인은 온도, 상대습도, 공기조성 및 통풍 상태가 있으며 이로 인해 버섯의 호흡량, 수분 함량, 경도, 색도, pH 및 이취 등에 영향을 준다. 큰느타리버섯의 주요 장해는 갈변, 이취, 부패가 있으며, 이를 막기 위해 상품성이 높은 품종을 개발하거나 저장성을 높이는 처리 방법이 고안되고 있다. 버섯의 품질을 유지하기 위한 방법으로는 건조, 감마선 조사, 키토산 처리와 같은 수확 후 처리 방법과 CA 저장과 MA 포장을 통한 저장 방법이 있다. 버섯의 건조는 자연건조, 열풍건조, 동결건조, 진공건조, 전자파진공건조 방법이 있으며 동결건조 방법을 사용한 버섯의 성분저하가 비교적 낮았다. 1 kGy 감마선 조사가 고선량에 비해 저장기간 연장에 효과적이었으며 오일, protocatechuic acid, 왁스 등의 친수성 colloid를 키토산에 첨가하여 코팅처리 하였을 때 경도유지, 호흡 및 갈변이 억제되었다. 큰느타리버섯의 CA 저장조건은 $10^{\circ}C$ 이하의 온도에서 5kPa $O_2$ + 10~15kPa $CO_2$의 공기 조성이 제시되었으며 MA 포장으로는 미세천공을 갖는 PP필름을 이용한 능동적 기체조성 방법이 저장 중 품질유지에 효과적이었다.

• 한국수산과학회지
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• 제39권2호
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• pp.85-93
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• 2006

This study was conducted to evaluate the optimal processing conditions of smoke-dried powdered oysters and to determine their shelf-life during storage for development of a natural oyster flavoring substance. The optimal conditions for processing of smoke-dried oyster powder with freshy oyster were as follows. Raw shelled oysters were rinsed with 3% saline solution, drained, boiled for 10 minutes at $98^{\circ}C$, and then smoked for 1 hour at $50^{\circ}C$, followed by drying for 4 hours at $80^{\circ}C$ Smoke-dried oyster powder with oyster scraps were prepared as flavoring material. The smoked oyster scraps were submerged in oyster sauce far 10 minutes at room temperature and then dried with hot air for 5 hours at $50^{\circ}C$. The smoke-dried oysters and smoke-dried oyster scraps were then pulverized to 50 mesh and packed in tea bags or vacuum-packed in laminated plastic film bags (PE/PVDC/CPP, $12{\mu}m/15{\mu}m/50{\mu}m$). Compared to non smoke-dried powdered oysters, the smoking and dipping in oyster sauce enhanced the flavor and prevented lipid oxidation of the smoke-dried powdered oyster product. Shelf-life tests indicated that the vacuum-packaging method preserved the quality of smoke-dried powdered oysters stored for 150 days at room temperature.

• 한국수산과학회지
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• 제40권6호
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• pp.350-355
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• 2007

The optimal substrates and reaction flavoring conditions were examined to develop pearl oyster extract (POE) flavor using the Maillard reaction under a model system. The sugar for the Maillard reaction was glucose, and the amino acid was cysteine, with glycine as the reaction substrate. A three-dimensional response surface method was used to monitor the dynamic changes of the substrates during the Maillard reaction. To enhance the flavor of POE, a two-step enzymatic hydrolysate (Brix $20^{\circ}$) was reacted with the precursors (1:1, v/v). A 2:1:1 mixture of 0.4 M glucose:0.4 M glycine:0.4 M cysteine (v/v) was selected as a suitable reaction system for the reappearance of baked potato odor and boiled meat odor, and masking the shellfish odor. The two-step enzymatic hydrolysate and selected precursors were reacted in a high-pressure reactor to optimize the reaction parameters. The optimum conditions were 150 minutes at $120\;^{\circ}C$ and pH 7.0. The pH was the most critical factor for the response of the baked potato odor and masking the shellfish odor, while the reaction time affected the reappearance of the boiled meat odor.

• Asian-Australasian Journal of Animal Sciences
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• 제26권7호
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• pp.916-920
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• 2013

The triploid Pacific oyster, which is produced by mating tetraploid and diploid oysters, is favored by the aquaculture industry because of its better flavor and firmer texture, particularly during the summer. However, tetraploid oyster production is not feasible in all oysters; the development of tetraploid oysters is ongoing in some oyster species. Thus, a method for ploidy verification is necessary for this endeavor, in addition to ploidy verification in aquaculture farms and in the natural environment. In this study, a method for ploidy verification of triploid and diploid oysters was developed using multiplex polymerase chain reaction (PCR) panels containing primers for molecular microsatellite markers. Two microsatellite multiplex PCR panels consisting of three markers each were developed using previously developed microsatellite markers that were optimized for performance. Both panels were able to verify the ploidy levels of 30 triploid oysters with 100% accuracy, illustrating the utility of microsatellite markers as a tool for verifying the ploidy of individual oysters.

• 한국수산과학회지
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• 제53권2호
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• pp.156-164
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• 2020

To develop a seasoned laver from cooking oyster effluent (C-COE), this study optimized the C-COE concentration, roasting temperature and time using response surface methodology (RSM). The optimal C-COE concentration, roasting temperature and time for producing seasoned laver from C-COE were 31.0%, 182.2℃ and 21.1 sec, respectively. The proximate composition of the seasoned laver prepared with C-COE under the conditions was 5.2% moisture, 37.4% crude protein, 8.2% crude lipid, 11.1% ash, 38.1% carbohydrate. The water activity of the prototype seasoned laver was 0.038. The prototype had stronger taste and flavor intensities than a commercial product. There was no difference (P>0.05) in the Hunter color value between the prototype and the commercial product. The peroxide (POV) and acid values (AV) of the prototype were 6.0 meq/kg and 1.4 mg KOH/g, respectively, which are considered acceptable. The results suggest that the seasoned laver with C-COE developed can be industrialized.

• 한국식품영양과학회지
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• 제29권1호
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• pp.85-92
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• 2000

This study was carried out to storage of Pleurotus ostreatus packed in various trays made by different matrials-expanded polystyrene (EPS), rice straw pulp(RP), and RP trays coated with starch, carboxyl methyl cellulose (CMC), polyacrylamide (PAM), alkylketen dimer (AKD), rosin size (RS) and polyethylene glycol (PEG) at 8~1$0^{\circ}C$ and 70~80% relative hymidity for 6 days. At 6 days storage, weight increase of RP and CMC tray was lower (p<0.05) than those of others and the weight of oyster mushroom packed in RP, CMC and AKD tray decreased lower(p<0.05) than those of others. Carbon dioxide contents in trays were increased from 0.5% to 5.5%~8.6% within 1 day storage. Oxygen contents in trays were sharply decreased from 20% to 0.8%~8.2% within 1 day storage. Lightness of oyster mushroom increased all trays. Off flavor appeared stronly in oyster mushroom packed in EPS, AKD and PEG during storage, but was not detected in mushroom packed in starch and CMC until 4 days storage.

• 한국식품영양과학회지
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• 제36권1호
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• pp.87-92
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• 2007

남해안 일대에서 다량 생산되고 있는 굴의 소비 촉진을 위하여 조미 굴포의 제조를 시도하였다. 굴 첨가비율에 따른 조미 굴포의 일반성분, 색조 및 관능검사의 결과로 미루어 보아 조미 굴포의 제조를 위한 굴의 최적 첨가비율은 30%로 판단되었다. 최적 조건에서 제조한 조미 굴포는 조미 수리미포에 비하여 아미노산의 총함량은 차이가 없었으며 주요 아미노산으로는 glutamic acid, leucine, lysine 및 threonine 등이었다. 또한, 조미 굴포의 칼슘 및 인 함량은 조미 수리미포에 비해 높았으며, 조미 굴포의 유리아미노산의 총함량 및 taste value는 각각 1,576.8 mg/100 g 및 226.05이었고 맛의 지대하게 영향을 미치는 아미노산은 glutamic acid 및 aspartic acid이었다.