This study was conducted to ivestigate the quality of modeled chinese-cabbage Kimchi. The mutual action of sub-ingredients and optimum mixing conditions were examined by analyses of pH, acidity, content of vitamins, carotenes, number of total microorganism, and Lactobacilli, the activities of softening related to enzymes (polygalacturonase and ${\beta}$-galactosidase), and sensory quality during fermentation. The result about the mutual action of red pepler powder and garlic showed that the pH was decresed as concentration of garlic was higher and that of red peppler powder became lower. Kimchi had unpleasant taste and undesirable odor when the adding ratio of the peper powder and garlic was unbalanced. As the concentration of garlic became higher, the content of vitamin C in Kimchi tissue decreased while that of vitamin C in Kimchi juice increased. The contents of vitamin B1, B2 and carotene increased as the concentration of garlic became lower. The optimum mixing ratio of red pepper powder and garlic evaluated by overall eating quality was 4.66% and 3.45%, respectively. The result about the mutual action of ginger and green onion was that pH became higher as the concentration of ginger was 1.84% and that of green onion was 5.96%. The intensity of fresh taste and odor became stronger as the concentration of ginger increaed to 2.76% and that of green onion decreased to 2.98%. The balance of sour, salty and hot taste became better as the concentration of ginger increased and that of green onion decreased. The optimum mixing condition evaluated by overall eating quality was 2.94% in ginger + 2.78% in green onion. The contents of vitamin B1, B2 and C were high in this condition. The result about the mutual action of leek and salted anchovy juice was that pH became lower as the concentration of leek increased and that of salted anchovy juice decreased. Sour, hot and sweet tastes were good in the condition of leek 12%, salted anchovy juice 4.69%. Palatable, fresh taste and odor became weaker when the one of both sub-ingredients was too much little. The optimum mixing condition evaluated by overall easting quality was 9.76% in leek + 7.32% in salted anchovy juice. The contents of vitamin B1, B2, C and carotene were high in this condition and other sensory qualities were good. The result about the mutual action of salt and sugar was that pH became lower as the concentration of sugar became higher and that of salt became lower. The sweet taste was reduced of hot taste than salty taste. Palatable and fresh tastes were desirable when Kimchi fermented with less salt and more sugar. The optimum mixing condition evaluated by overall eating quality was 3.29% in sugar + 4.80% in salt. The contents of vitamin B1, B1, C and carotene were high in this condition. The result of model Kimchi fermented at 20$^{\circ}C$ was that the number of Lactobacilli in model Kimchi was higher than that of in control Kimchi. The fermentation period was extended under pH 4.0 and the contents of vitamin B1, B1,C and carotene were high through the whole edible period. The activity of polygalacturonase was low, but that of ${\beta}$-galactosidase was high during fermentation.
Journal of the Korean Society of Food Science and Nutrition
/
v.20
no.1
/
pp.5-12
/
1991
the Chinese cabbage kimchi was fermented with the various submaterials such as hot pep-per garlic ginger leek green onion fermented anchovy juice and sugar according to the average contents of each submaterial described in the 39 kinds of references. And then the effects of each submaterial and lactic acid bacteria such as L. brevis. Leu. mesenteroides. P cerevisiae and L. plantarum on the content of carotenes were investigated, The major carotene in kimchi was $\beta$-carotene. And also $\delta$-carotene and $\alpha$-carotene were detected. Contents of $\beta$-carotene and total carotene were high in the kimchi containing leek red pepper powder green onion and fermented anchovy juice as a submaterial. But the kimchi containing or omitting the other submaterials were litter affected to the contents of carotene. Contents of $\beta$-carotene and total carotene were high in kimchi fermented with Leu. msenteroides L. brevis and P. cerevi-siae as a starter but was low with L plasntarum.
Kim, Byung-Young;Yoon, Sook-Hyun;Choi, Jung-Wha;Huh, Yoon-Jung;Choe, Eun-Ok
Journal of the Korean Society of Food Culture
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v.13
no.3
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pp.183-189
/
1998
Consumption and general views of housewives in Inchon on commercial kochujang(fermented red pepper-soy paste) were surveyed by questionnaires in June through August, 1997. Respondents considered the taste (88.1%) as the most important factors to determine the quality of kochujang and preferred hot(621%) and bright red colored kochujang(70.6%) with fine red pepper powder Eighty seven percent of respondents preferred the traditional kochujang to the commercial one mainly due to the taste and the reliability to the materials kochujang. Especially all housewives at the age of sixty and over preferred traditional kochujang and those at twenties had a higher preferrence for the commercial one compared to other age groups. While 51.4% of the respondents consumed both e traditional and commercial kochujang, 16.2% and 32.5% did only commercial and traditional kochujang, respectively. Consumption of commercial kochujang decreased with age and main food with it was pan fried dishes(33.7%). Convenience(76.6%) was the major reason for purchasing commercial fried and most respondents(44.1%) selected the special brand from the previous experience of their own. Problems to be improved in commercial kochujang were better taste(31.3%) and development of diverse usage(62.4%).
Ku, Kyung-Hyung;Kim, Na-Young;Park, Jae-Bok;Park, Wan-Soo
Korean Journal of Food Science and Technology
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v.33
no.2
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pp.231-237
/
2001
This study was carried out to investigate characteristics of the red peppers for Kimchi preparation. Four cultivars of Korean red pepper with different color value, ten brands of commercial red pepper powder produced at different areas and paprika with imported from Spain were collected. These sample were analyzed for proximate composition, color, capsaicinoid and sensory evaluation, etc. Proximate composition was moisture of 12.6-17.13%, ash of 5.11-8.93%, crude lipid of 7.68-12.81% and crude protein of 11.35-16.72%. Free sugar content showed two-times among samples, the lowest sample was 11.35%(Shintaein), whereas the highest sample was 21.06% (Koisan). Capsaicinoid content of cultivars showed the highest value Dabok with 75.49 mg% and the lowest value Gusung with 18.77 mg%. American Spice Trade Association(ASTA) value, it was indicated redness of red pepper, showed very wide range of values with 47.3-144.7. Correlation coefficient($R^2$) of ASTA value and $a^* $was 0.87, while $R^2$ of 0.05 between of ASTA value and capsaicinoid contents. In sensory attributes, Dongbang(0.87 mg%) and Gusung(0.43 mg%) were not significantly different, while Dabok(1.74 mg%) was significantly different from other smaples in lag time, overall intensity and duration. The difference threshold of hot taste and ASTA value was over 1.0 mg%(capsaicinod content), 70(ASTA value), respectively.
Physiological activities of hot water extracts of 10 commercial instant curry powders and 6 spices, were investigated. All spice extracts except ginger showed significant antioxidant activities on the autoxidation of linoleic curry acid (p<0.01). Antioxidant activities of clove and fennel were significantly higher than ${\alpha}-tocopherol$, instant curry powders, and other spices, Red pepper $(52.8{\pm}2.13%)$, clove, and coriander showed significant inhibitory activities against angiotensin-I-converting enzyme (p<0.001). Cytotoxic effects of instant curry powder and spices against human cancer cell lines were examined through MTT assay. Black pepper $(29.31{\pm}2.21%\;cytotoxic\;rate)$ and cardamon $(19.41{\pm}3.92%)$ were effective against MCF-7 (p<0.01), Clove $(42.92{\pm}5.57%)$ against HeLa (p<0.01). Ginger $(34.21{\pm}1.11%)$, cardamon, and black pepper against A172 (p<0.001), garlic $(82.88{\pm}0.53%)$ against SN12C (p<0.001), garlic $(71.63{\pm}0.38%)$, red pepper, ginger, fenugreek, SPC, cumin, and MPC against SNU-638 (p<0.001), and cassia $(82.84{\pm}16.92%)$ against A549 (p<0.001).
Proceedings of the Korean Society of Plant Pathology Conference
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2003.10a
/
pp.90.2-91
/
2003
In commercial greenhouses, senescent flower petals or flowers of vegetables such as tomato, strawberry, hot pepper and zucchini squash were blighted to be removed from fruits within five days after spraying of Trichoderma harzianum YC459 (TORY), a biocontrol agent for the gray mold rot of vegetables caused by B. cinerea The mechanism for selective colonization of senescent floral tissues by T. harzianum YC459 was elucidated using fresh and senescent (Hays and 14days after flowering, respectively) floral tissues of zucchini squash (Cucurbita moschata Duchesne). The spores of T. hrzianum YC459 were produced more on agar and liquid culture media supplemented with 5% dry powder of senescent floral tissues than fresh tissues during 15days. Mycelial growth was also much better in the media with senescent tissues than with fresh tissues. Enzyme activities of amylase, polygalacturonase and cellulase in the liquid media which might be involved in the colonization of tissues by T. harzianum YC459 were compared. The activities of three enzymes were much higher in the media with senescent floral tissues than with fresh floral tissues reaching to the maximum during 9 to 12days of incubation. Based on the results, the removal of senescent floral tissues, a possible inoculum source of the pathogen, may be another mechanism for biocontrol of gray mold rot of vegetables by T. harzianum YC459.
This study analyzed Kimchi eating culture in 178 households with female middle school children located in Incheon and Seosan areas, investigated the Kimchi eating patterns of female middle school students, and also analyzed the differences in value recognition for Kimchi between mothers and their female middle school students. Results showed that 23.0% of subject households answered eat Kimchi at every meal and the main reason for eating Kimchi in most households was good for taste. Most households made their own Kimchi, and only 12.3% of households bought Kimchi. Subject households preferred hot and spicy taste (34.8%) and pleasing taste (20.2%), and 44.4% of middle school children answered as eating Kimchi at every meal, and the source for information on Kimchi was home in 51.6% and mass media in 33.7%, suggesting the lack of school education. Both mothers and their female middle school students placed high value on Kimchi for its nutritional aspect and on Kimchi from the market for its convenience. Mothers showed significantly higher value (p<0.05) on the storage aspect of Kimchi compared to their middle school students, and female middle school students showed significantly higher value (p<0.05) on the value recognition for Kimchi as an international food compared to their mothers. Also, the value for hot pepper powder was high among other additional ingredients, and both mothers and middle school students had high values for Kimchi stew among other food dishes using Kimchi, and middle school students showed higher values (p<0.001) on foreign dishes using Kimchi such as Kimchi pizza and Kimchi spaghetti compared to the mothers group. Therefore, based on these results, the development of educational programs on Kimchi is needed not only at home but also at schools, by re-emphasizing the importance of value recognition for Klmchi in our food culture.
Journal of the Korean Society of Food Science and Nutrition
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v.41
no.9
/
pp.1320-1325
/
2012
This study investigated the bulk properties of red pepper powders according to drying method and variety. Bulk density, compressive characteristics, irrecoverable work, dynamic angle, and stress relaxation were investigated. Loose bulk density ranged between 0.420 $g/cm^3$ for Cheongyang cultivar and 0.427 $g/cm^3$ for Hanbando cultivar by hot-air drying. The highest tapped bulk density was 0.586 $g/cm^3$ for Hanbando cultivar by far-infrared drying and the lowest value was 0.523 $g/cm^3$ for Hanbando cultivar by sun drying. Hausner ratio reached a maximum value of 1.370 for Hanbando cultivar by far-infrared drying. Compressibility ranged between 0.0016 for Cheongyang cultivar by sun drying and 0.0023 for Hanbando cultivar by far-infrared drying. Compression ratio reached a maximum value of 1.032 for Hanbando cultivar by hot-air drying. Dynamic angle of repose ranged between 37.47 and $42.97^{\circ}$. Irrecoverable work ranged between 76.0 and 81.7%. Relaxation reached a maximum value of 24.31% for Cheongyang cultivar by far-infrared drying.
As for red pepper seasoning oil (RPSO), seasoning oil (SO) and pine needle oil (PNO), various organic solvent extracts from rosemary powder and tocopherol are treated as control group. At this time, amounts that are treated were all 1,000 ppm. It was observed by AV (acid value), POV (peroxide value) and carbonyl compounds content of the stored samples during 3 months at 60${\pm}$2$^{\circ}C$ incubation. Tocopherol was shown to be pro-oxidant than the antioxidant in all seasoning oil samples. Icreasing effect of storage stability of chloroform/MeOH extract was the most superior one. Final result of icreasing effect of storage stability from the determinated data was as follows. The storage stability of solvent system by AV and POV analysis was in the increasing order of chloroform/MeOH extract> ethyl alcohol extract>hot water extract>ethyl acetate extract>acetone extract>none treating group> tocopherol treating group, POV was chloroform/MeOH extract>ethyl alcohol extract ${\geq}$ ethyl acetate extract> acetone extract ${\geq}$ hot water extract>none treating group>tocopherol treating group and by carbonyl compound content analysis was in the increasing order of chloroform/MeOH extract>ethyl acetate extract>ethyl alcohol extract>hot water extract>acetone extract>none treating group>tocopherol treating group.
Kong Cheong-Sik;Kang Su-Tae;Ji Seung-Gil;Kang Jeong-Goo;Choi Dong-Jin;Kim Jeong-Gyun;Oh Kwang-Soo
Korean Journal of Fisheries and Aquatic Sciences
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v.39
no.3
/
pp.278-282
/
2006
The powdered boil-dried oyster (C), the powdered smoke-dried oyster (OS-1) and the powdered smoke-dried oyster scrap (OS-2) were examined for their taste-active components, quality characteristics for potential utilization as a natural flavoring substance. The free amino acid level of OS-l and OS-2 were 395.6 mg/100 g and 551.5 mg/100 g, respectively, and that of betaine of OS-1 and OS-2 were 164.6 mg/100 g and 214.9 mg/100 g, respectively. The contents of inorganic ions were rich in Na, K, P, Ca and Mg in that order. Major free amino acids were taurine, glutamic acid, proline, alanine and glycine. The extract condition of the OS-1 and OS-2 the instant soup was the most appropriate at $98^{\circ}C$ for 1-5 min. The hot water extract of OS-1 and OS-2 with additives such as salt, sugar, pepper and onion powder had a good organoleptic qualities compared with the conventional flavoring substances in a local market. We conclude that powdered smoke-dried oyster and its scrap can be commercialized.
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