In order to optimize sterilization conditions of retort pouched curry sauce, sterilization processes for eighteen conditions by varying temperature, time and method were conducted through $3^{2}{\times}2^{1}$ experimental factorial design. Quality evaluations before and after sterilization included measurements of vitamin (niacin) retention, pH and color differences, and organoleptic test(taste, color and viscosity). $F_{o}$ values were also measured at each condition. Product qualities were mainly affected by sterilization temperature and time, whereas sterilization method had no significant effect. Effect of sterilization time on product qualities was higher than that of sterilization temperature. From the response surface analysis, an optimum range of sterilization condition simultaneously satisfying desired specifications was determined to be $123.5^{\circ}C$, 21.5 min to $127.5^{\circ}C$, 17.0 min. In this range, the sterility($F_{o}$ value) at a cold point during sterilization was approximately 15.0 min.
Kim, Juntae;Utama, Dicky Tri;Jeong, Hae Seong;Barido, Farouq Heidar;Lee, Sung Ki
Journal of Animal Science and Technology
/
v.62
no.5
/
pp.713-729
/
2020
The aim of this study was to develop retorted samgyetang marinated with different levels of soy sauce and processed at different F0 (thermal death time at 121℃) values. The tested marinade series comprised different percentages of soy sauce in water (0%, 25%, and 50% [w/w]) containing a fixed concentration of sodium tripolyphosphate (0.3% [w/w]). Following marination, samgyetang was prepared and subjected to retort processing, until an F0 value of either 8 or 29 was achieved. Meat quality analysis of the breast meat, sensory evaluation, and aroma analysis were performed as indicators of acceptability. The meat pH decreased as the soy sauce content increased, regardless of the F0 value. The shear force value significantly decreased as the concentration of soy sauce increased, but increased as the F0 value increased (p < 0.05). Lipid oxidation was not affected by marination, but increased significantly as the F0 value increased (p < 0.05). The proportion of polyunsaturated fatty acids decreased significantly (p < 0.05) as the F0 value increased. The total alkane content decreased as the F0 value increased (p < 0.05). Changes in the total volatile sulfur compound and 2-butyl-1-octanol content were affected by soy sauce marination. Marination using 25% soy sauce and retort sterilization, until an F0 value of either 8 or 29 was achieved, improved the acceptability of samgyetang. Therefore, marination using 25% soy sauce and retort sterilization until an F0 value of 8 is the process recommended for developing a soy sauce-flavored, retorted samgyetang product of acceptable quality.
To obtain a value-added product from the non-toxic brown-backed toadfish Lagocephalus gloveri (pufferfish), we developed a retort pouched pufferfish soup (RPS) and characterized its processing conditions and quality metrics. We found that the most appropriate manufacturing process for the RPS consisted of detoxifying and cold-water dipping the pufferfish flesh, blanching it, and adding it to the retort pouch along with other ingredients (hot-water extract of pufferfish head and carcass, radish, bean sprouts, and garlic), after which the pouch was sealed, sterilized (120℃, F0 value 7.5-10 min.), cooled, and inspected. The moisture, crude protein, and total volatile basic nitrogen contents of the RPS were 97.2%, 1.3% and 7.7 mg/100 g, respectively. The total free amino acid content was 903.2 mg/100 g, and the main free amino acids were glutamic acid, taurine, lysine, glycine, threonine, alanine, arginine, proline, and hydroxyproline. Sterilizing the RPS for up to F0 value 10 min. did not cause any major problems in terms of chemical or sensory qualities. This RPS has good storage stability and organoleptic qualities compared with similar commercial pufferfish soups and is suitable for commercialization as a value-added instant seafood soup.
LEE Eung-Ho;KIM Jeong-Gyun;CHA Yong-Jun;OH Kwang-Soo;KOO Jae-Geun;KWON Chil-Sung
Korean Journal of Fisheries and Aquatic Sciences
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v.17
no.6
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pp.499-505
/
1984
For the purpose of obtaining basic data which can be applied to processing of retort pouched shell-fishes, retort pouched seasoned baby clam was prepared. After sand and mud were removed, and then steamed baby clams were shucked. Baby clam meats were seasoned with the mixed seasoning powder containing $3\%$ of sugar, $2.5\%$ of salt, $12\%$ of sorbitol, $0.5\%$ of monosodium glutamate and $10\%$ of smoke flavor, and then dried at $35-40^{\circ}C$ for 3 hours. After dried, the meats were vacuum packed in plastic film bag (polyester/nylon/unoriented polyproylene; $12{\mu}m/15{\mu}m/50{\mu}m,\;15{\times}17cm$), and sterilized for 12 minutes in a hot water circulating sterilzer at $120^{\circ}C$, The factors such as pH, VBN, moisture content water activity, color value (L, a, b), texture, TBA value and viable bacterial count of products were determined during storage at room temperture ($20{\pm}3^{\circ}C$). The results showed that the product could be preserved in a good condition for 120 days at $20{\pm}3^{\circ}C$. Judging from the scores of sensory evaluation on flavor, the product added smoke flavor as seasoning was the most desirable.
Journal of the Korean Society of Food Science and Nutrition
/
v.39
no.6
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pp.843-852
/
2010
Hydroxycinnamic acid derivatives (HADs) and anthocyanins in corn (Zea mays L.) have recently been reported to have anticarcinogenic, anti-hypertensive, antidiabetic, antifungal, antioxidant, and anti-melanogenic activities. Five HADs and anthocyanins in corn were quantified by HPLC according to cultivars and heat processes. In addition, major anthocyanin of a black waxy corn was isolated and identified by several instrumental analysis, and its content was also quantified by HPLC according to heat processes. Of the ten corn cultivars, five waxy corn cultivars had moderate five HADs contents except "Baksa" waxy corn with higher two free cinnamic acids (FCAs), p-coumaric and ferulic acids. In contrast, three dent corn cultivars contained higher levels of three polyamine conjugates (PCs), CFP, DCP and DFP, and especially "P3394" had the highest amount of the three PCs. Two sweet corn cultivars had generally intermediate HADs levels between waxy and dent corn cultivars. Of the three colored-waxy corns, a black Mibaek waxy corn had the highest anthocyanin content. During heat processes, levels of two FCAs in the black waxy corn generally increased, whereas no significant change on three PCs contents was observed except the puffing process. Roasting, retort and puffing processes significantly increased two FCAs and especially, the puffed black waxy corn had the highest amount of FCAs. Meanwhile, most heat treatments except retort process, considerably decreased total anthocyanin contents, and especially the puffed black waxy corn had nearly no anthocyanin. Level of one major anthocyanin, pelargonidin 3-glucoside (P3G) isolated from a black waxy corn was appreciably decreased by heat treatments except retort process, which greatly increased P3G content. These results suggest that the retorted black waxy corn may be a promising high quality functional corn product.
Temperature distribution tests for a water cascading horizontal retort utilizing superheated water with overpressure as a heating medium were carried out under three different loading conditions, that is, empty(P-0), half-fully(P-3000) and fully(P-6000) loaded operating conditions. Tank volume and full loading capacity of sterilizer used for this study were about 5,900 liter and 1,140 kg(6000 pouches having 190 g weight each), respectively. Set point condition for sterilization was $122^{\circ}C$, 23 minutes and pressure was maintained in the range of $1.8{\sim}2.0\;kg/cm^2$ during sterilization. For each experiment, time-temperature data and F values were obtained from temperature microprocessor($F_0$ monitor). There were significant variations in the temperature distribution at different positions in the sterilizer. The temperature distribution was also affected by the pouch loading condition significantly. The application of the temperature distribution test to a product (retort pouched curry sauce) was conducted at the fully(P-6000) loading condition. Although heat transfer parameters($f_h\;and\;f_c$), and F values were varied with the position of sterilizer, sensory evaluation showed that the temperature distribution of the sterilizer used in this study didn't affect the quality of retorted curry sauce.
LEE Eung-Ho;CHUNG Soo-Yeol;KOO Jae-Geun;KWON Chil-Sung;OH Kwang-Soo
Korean Journal of Fisheries and Aquatic Sciences
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v.16
no.4
/
pp.355-362
/
1983
A vacuum-packed seasoned-dried product of sea mussel, Mytilus edulis, caught in the southern coasts of Korea, was prepared and stored at $35^{\circ}C$ for 70 days to test quality stability. Sea mussel, purchased from Jagalchi fish market in Busan, was steamed, shucked and eliminated byssus. The sea mussel meat was seasoned with the seasoning solution prepared with sugar, salt, sorbitol, glycerol, monosodium glutamate, 5'-ribonucleotide and smoke flavor (Smoke-EZ, Alpha Foods Co., Ltd.). After seasoning, the meat was dried at $52-58^{\circ}C$ for three hours, vacuum-packed in the laminated plastic film bag($14{\times}15cm$), and finally sterilized at $120^{\circ}C$ for 26 minutes in hot water circulating retort. The moisture, water activity, color value(L, a and b value), texture, TBA value and viable bacterial count of the products were determined during the period of storage at $35^{\circ}C$. From the results obtained, it became clear that the product could be preserved in a good quality for 70 days at $35^{\circ}C$, though a slight decrease in moisture content and development of a pale brown color was resulted. Judging from the sensory evaluation on flavor, the products containing smoke flavor were most desirable.
In order to optimize process conditions for manufacturing retorted Kimchi soup by using stationary and rotary types systems were applied for sterilization process. For investigating the differences in heat penetration characteristics during sterilization, Kimchi soup was packed into retort pouches, and sterility ($F_0$ value) at various positions in the product was measured through a wireless $F_0$ sensor. Heat penetration characteristics were significantly affected by sterilization method. From data analysis, optimum ranges of sterilization temperature and time was determined to be $120.7^{\circ}C$, 13 min for rotary type and $120.7^{\circ}C$, 20 min for stationary type. At those conditions, they had similar sterility ($F_0$ value). The results showed that rotation provides faster heat penetration and more uniform sterility than various positions of the product. These results derived a lot of advantages from related industry. For instance, many of the more viscous semi-liquid products and heat sensitive natural products could be sterilized in the lager pouch sizes without overcooking or scorching. Hence, current study suggests that rotary type retort would make it possible not only to reduce processing times as 35~45%, but also to improve the quality of product as overall taste, flavor, color, and texture with significant difference (p<0.05).
This study was designed to assess the perception and use of weaning diets and to serve as a guideline of processed weaning diets through a survey focused on the Gwangju-Jeonnam regions. The following results were obtained. Most subjects mixed 'home-made' and 'commercial' weaning diets and considered weaning diets as 'a diet for supplementing insufficient nutrition'. The most frequently used type of weaning diet was 'a kind of gruel with vegetables or meat', followed by 'boiling powder with water' and 'grinding or crushing fruits'. Two thirds (68%) of subjects had experienced buying weaning diets, mainly a powder type. The most common reason to buy weaning diets was 'troublesome', followed by 'excellent nutrition', 'convenient to go out', and 'don't know how to make'. The following results according to factors were found. The types of provided and of weaning diets were significantly different by age; the understanding of weaning diets, by education and mothers' employment; and where to get information about weaning diets, by economic status. The highest request for developing weaning diets was a type of 'powder' and 'gruel', and the highest cooking type was 'adding boiling water', followed by 'a semi-cooking product' and 'a finished product'. 'Retort pouch' package, a 'single' package unit, and 'keeping cold' were also requested by the participants. A desirable package unit in developing weaning diets was significantly different by mother's employment; the cooking type of product, by economic status; a way to keep product, by mother's employment; and package types, by education and economic status. When weaning diets were made by environmentally friendly agriculture, 69.5% of subjects were willing to purchase them. With the increase in economic status, education, and employment rate, the use of weaning diets on the market will increase. For this reason, correct nutrition education is needed. With the increasing demand for environmentally friendly agriculture, a variety of weaning diets should be developed to meet this demand.
This study was conducted to survey the perception of domestic consumers about traditional pork dishes, and to utilize the survey result as a basis for the development of processed pork products. A survey was conducted on 218 domestic consumers regarding the following: general questions, propensity and preference to consume pork dishes, pork dishes feasible for export, and the types and problems of processed products feasible for export. The results of the survey showed that the respondents consumed pork dishes 3-4 times a month on average and they appeared to consume the pork dishes most frequently in specialized restaurants. The highest preference was shown in Samgyeopasal gui (grilled pork belly) and Galbi gui (grilled pork rib) among the pork dishes, whereas the lowest preference was shown in Kkubdegi gui (grilled pork skin) and Gookbob (boiled rice and pork served in soup). When the type of processed pork products available according to pork dishes were analyzed, the result showed that Samgyeopasal gui (grilled pork belly) and Nirbiani (slices of roast, seasoned pork in width) could be developed as a frozen product, Geyook Bokeum (stir-fried spicy pork), Bulgogi (Korean-style barbecued pork), and Galbi jjim (braised short ribs) could be developed as a retort product, and that Bossam (boiled pork eaten with a salty sauce and wrapped in greens), Pyeonyuk (slices of boiled pork), Jokbal (pork trotters), and Sundae (kneading together seasoned mixture of vegetables and glass noodles stuffing it into casings made of hog intestines, which are then tied off at the ends and boiled) could be developed as a vacuum-packed product. When the survey concerning the problems expected in the development of processed products using pork dishes was conducted, the result showed that there could be a texture change issue for Galbi gui, Samgyeopasal gui and Nirbiani; a preservation issue for Bossam, Pyeonyuk; a safety issue for Bulgogi and Geyook Bokeum; a taste and flavor change issue for Geyook Bokeum and Sundae; and a packaging issue for Gookbob.
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