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Effect of Gamma-Irradiated Red Pepper Powder on Physicochemical Properties of Kakdugi, a Korean Traditional Radish Kimchi

  • Lee, Jeung-Hee;Sung, Tae-Hwa;Kim, Mee-Ree
    • Preventive Nutrition and Food Science
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    • v.10 no.1
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    • pp.22-28
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    • 2005
  • Physicochemical properties and sensory characteristics of kakdugi prepared with red pepper powder gamma-irradiated up to 7 kGy were determined during fermentation at 5℃. The overall fermentation patterns between kakdugies with irradiated and nonirradiated red pepper powder were similar. Kakdugi prepared with irradiated red pepper powder required one week longer time for optimal ripening compared to the kakdugi control. Irradiated red pepper powder did not affect the hardness and fracturability of kakdugi during fermentation. Kakdugi prepared with irradiated red pepper powder maintained a redder color than the kakdugi control. No significant differences were observed in taste, odor, texture, and overall acceptability (p<0.05) except for color. It can be concluded that irradiation of red pepper powder, up to 7 kGy, did not affect the quality of kakdugi with regard to physicochemical and sensory characteristics during fermentation. Moreover, irradiated red pepper powder was better for maintaining the red color and delaying optimum ripening time of kakdugi fermentation.

Effect of Red Pepper Seeds Powder on Lipid Composition in Rats Fed High-Fat.High-Cholesterol Diets

  • Song, Won-Young;Chun, Sung-Sik;Ku, Kyung-Hyung;Choi, Jeong-Hwa
    • Preventive Nutrition and Food Science
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    • v.15 no.3
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    • pp.184-188
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    • 2010
  • The purpose of the present study was to evaluate the effects of red pepper seeds powder on lipid metabolism in rats fed high fat high cholesterol diet. Rats were divided into five experimental groups: normal diet group, high fat high cholesterol diet group, high fat high cholesterol diet with 5% red pepper seeds powder supplemented group (SA group), high fat high cholesterol diet with 10% red pepper seeds powder supplemented group (SB group) and high fat high cholesterol diet with 15% red peeper seeds powder supplemented group (SC group). The serum triglyceride (TG) and cholesterol contents, and LDL-cholesterol and atherogenic index (AI) of the red pepper seed powder supplemented groups were significantly decreased compared to the HF group. The serum HDL-cholesterol contents of the red pepper seed powder supplemented groups were increased compared to the HF group. However, there was no significant difference in the serum HDL-cholesterol among all experimental groups. The hepatic TG and cholesterol contents of the red pepper seed powder supplemented groups were significantly decreased compared to the HF group. The fecal total cholesterol and triglyceride contents of the red pepper seeds powder supplemented groups were significantly increased compared to the HF group. These results suggest that supplementation of red pepper seed powder may have a pronounced impact on markers of lipid metabolism in serum and liver of rats fed high fat high cholesterol diets.

Discrimination of Geographical Origin and Seed Content in Red Pepper Powder by Near Infrared Reflectance Spectroscopic Analysis (근적외선 분광분석법에 의한 고춧가루의 원산지 및 고추씨 혼입 판별)

  • Kwon, Hye-Soon;Lee, Nam-Yun;Kim, Soo-Jung;Chung, Seung-Sung;Kim, Joong-Hwan
    • Journal of the Korean Applied Science and Technology
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    • v.16 no.2
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    • pp.155-161
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    • 1999
  • Red pepper powder (Capsicum annum L.) is an important seasoning as a kimchi ingredient in korea and most korean consumer tend to eat the korean red pepper powder as the better than other oriental country such as China. Near infrared reflectance spectroscopy (NIRS) was applied for discrimination according to geographical origin (Korea, China) of red pepper powder. The objective of this study is to determine if NIR technique could be used to discriminate between the korean red pepper powder and non-korean red pepper powder according to seed content and maxing ratio in red pepper powder by using the new method. Rapid, precise and nondestructive analysis method for determination of the geographical origin of red pepper powder by near infrared spectroscopy and chemometrics were performed. It has been observed discriminant analysis with PLS is adequate to determinate the geographical origin of red pepper powder. It tend to difficult the discrimination of geographical origin according to increase the seed content of red pepper powder. The accuracy of discrimination in mixed red pepper powder was range from 95.2% to 100%.

Effect of Red Pepper (Capsicum frutescens) Powder or Red Pepper Pigment on the Performance and Egg Yolk Color of Laying Hens

  • Li, Huaqiang;Jin, Liji;Wu, Feifei;Thacker, Philip;Li, Xiaoyu;You, Jiansong;Wang, Xiaoyan;Liu, Sizhao;Li, Shuying;Xu, Yongping
    • Asian-Australasian Journal of Animal Sciences
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    • v.25 no.11
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    • pp.1605-1610
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    • 2012
  • Two experiments were conducted to study the effects of red pepper (Capsicum frutescens) powder or red pepper pigment on the performance and egg yolk color of laying hens. In Exp. 1, 210, thirty-wk old, Hy-line Brown laying hens were fed one of seven diets containing 0.3, 0.6, 1.2, 2.0, 4.8 or 9.6 ppm red pepper pigment or 0.3 ppm carophyll red. Each diet was fed to three replicate batteries of hens with each battery consisting of a row of five cages of hens with two hens per cage (n = 3). In Exp. 2, 180, thirty-wk old, Hyline Brown laying hens, housed similarly to those in Exp. 1, were fed an unsupplemented basal diet as well as treatments in which the basal diet was supplemented with 0.8% red pepper powder processed in a laboratory blender to an average particle size of $300{\mu}m$, 0.8% red pepper powder processed as a super fine powder with a vibrational mill ($44{\mu}m$) and finally 0.8% red pepper powder processed as a super fine powder with a vibrational mill but mixed with 5% $Na_2CO_3$ either before or after grinding. A diet supplemented with 0.3 ppm carophyll red pigment was also included (n = 3). In both experiments, hens were fed the red pepper powder or pigment for 14 days. After feeding of the powder or pigment was terminated, all hens were fed the basal diet for eight more days to determine if the dietary treatments had any residual effects. In Exp. 1, there were no differences in egg-laying performance, feed consumption or feed conversion ratio due to inclusion of red pepper pigment in the diet. Average egg weight was higher (p<0.05) for birds fed 1.2, 2.4 or 9.6 ppm red pepper pigment than for birds fed the diet containing 0.3 ppm red pepper pigment. On d 14, egg color scores increased linearly as the level of red pepper pigment in the diet increased. In Exp. 2, feeding red pepper powder did not affect egg-laying performance, feed consumption or feed conversion ratio (p>0.05). However, compared with the control group, supplementation with all of the red pepper powder treatments increased egg weight (p<0.05). All the red pepper powder treatments also increased (p<0.05) the yolk color score compared with the control. The results of the present study suggest that both red pepper powder and pigment are effective feed additives for improving egg yolk color for laying hens.

The Packaging and Irradiation Effects on Volatile Compounds of Red Pepper Powder

  • Lee, Jeung-Hee;Kim, Mee-Ree
    • Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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    • pp.139.2-139
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    • 2003
  • The packaging and irradiation effects on the volatile compounds of red pepper powder were investigated. The red pepper powder (Capsicum annuum) was prepackaged in vacuum (PE/Nylon film bag), and irradiated with the dose of 0, 3, 5 or 7 kGy at 0$^{\circ}C$. The odor of irradiated red pepper powder was classified into 4 groups (0, 3, 5, and 7 kGy) by electronic nose using metal oxide sensors, and the volatile compounds developed by irradiation were analyzed by GC-MS along with solid phase microextraction. Hexanoic acid and tetramethyl pyrazine, which were found in red pepper powder of 0 kGy, disappeared in irradiated red pepper powder. Further, 1,3-bis(1,1-dimethylethyl)-benzene was detected by GC-MS as a new developed volatile compound in irradiated red pepper, and this compound was identified to be originated from packaging material not from red pepper powder. This study showed that off-odor from packaging materials was responsible for the volatiles produced from dried food treated with irradiation.

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Microbiological Contamination of Fresh-Red Pepper and Packaged-Red Pepper Powder in South Korea

  • Jeong, A-Ram;Jo, Mi-Jin;Koo, Min-Seon;Oh, Se-Wook;Ku, Kyung-Hyung;Park, Jae-Bok;Kim, Hyun-Jung
    • Preventive Nutrition and Food Science
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    • v.15 no.3
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    • pp.233-238
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    • 2010
  • The aim of this study was to determine microbiological contamination of fresh-red pepper and packaged-red pepper powder commercially available in South Korea. Thirty-seven fresh-red peppers were collected from 5 farms and 31 packaged-red pepper powders were purchased from retail markets in South Korea. Foodborne pathogens (Escherichia coli, Salmonella spp., Listeria monocytogenes, Staphylococcus aureus and Bacillus cereus), total viable counts, Enterobacteriaceae, coliforms, yeast and mold, and Aspergillus flavus were determined. Detection percentage of contamination of Bacillus cereus in fresh-red pepper was 8.1%, which was lower than the 39% of detection rate in packaged-red pepper powder. The contamination level of Bacillus cereus was 1~3 log CFU/g in packaged-red pepper powder. Escherichia coli was detected in 5.4% of fresh-red pepper samples and was not detected in packaged-red pepper powder. Enterobacteriaceae and coliforms were detected in both of fresh-red pepper and packaged-red pepper powders. Foodborne pathogens, except Bacillus cereus and Escherichia coli, were not detected.

Physical and Sensory Properties of Ice Cream Containing Fermented Pepper Powder

  • Yeon, Su-Jung;Kim, Ji-Han;Hong, Go-Eun;Park, Woojoon;Kim, Soo-Ki;Seo, Han-Geuk;Lee, Chi-Ho
    • Food Science of Animal Resources
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    • v.37 no.1
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    • pp.38-43
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    • 2017
  • This study was conducted to investigate the physical and sensory properties of ice cream containing fermented pepper powder. Three ice cream formulas were manufactured: 1, control; 2, supplemented with 0.1% fermented pepper powder; and 3, supplemented with 0.2% fermented pepper powder. Formulas 2 and 3 had significantly higher viscosity and lower overrun than formula 1 (p<0.05). Additionally, ice creams supplemented with fermented pepper powder were harder and maintained their forms longer than the controls. 0.2% fermented pepper powder added ice cream had no pungency as much as that of control and overall sensory attribute was not significantly different from control. Therefore, ice cream containing fermented pepper powder maintained physical and sensory properties similar to the controls, and maintenance was better. It means fermented pepper powder ice cream can be utilized as the material of functional food (dessert).

A Study on The Kimchi Made with Green Pepper Powder (청고춧가루를 이용한 김치 제조에 관한 연구)

  • Jeong, Eun-Ja;Seo, Jeong-Sook;Bang, Byung-Ho
    • The Korean Journal of Food And Nutrition
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    • v.20 no.1
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    • pp.63-67
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    • 2007
  • In order to optimize use of pepper resources, and to aid farmers in increasing their income, we compared two types of kimchies made from red and green pepper powder. Qualitative differences were examined during fermantation at $4^{\circ}C$. There was no significant change in pH patterns, acidity, total bacteria cell count and total lactic acid bacteria cell count between the red and green pepper powder, however, sensory evaluation, indicated that Kimchi made with green pepper powder showed lower, sensory scores than Kimchi made with red pepper powder with respect to overall acceptability. Eventhough the sensory scores of green pepper is lower than that of red pepper, the quality of Kimchies was not different between them. Considering that the price of green pepper is far cheaper than red pepper powder, farmers should consider actively the production of green pepper Kimches in order to cut down expenses fur the production of Kimches.

Development of Restructured Chicken Thigh Jerky Added with Red Pepper Seed Powder (고추씨 분말을 첨가한 닭다리살 재구성 육포 개발)

  • Lee, Jeong-Ah;Kim, Hack-Youn
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.9
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    • pp.1333-1337
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    • 2016
  • This study aimed to investigate the effects of red pepper seed powder on the physicochemical properties (pH, CIE color value, water holding capacity, dry yield, proximate composition, and shear force) of restructured chicken thigh jerky. The restructured chicken thigh jerky samples were prepared with the following amounts of red pepper seed powder [0% (control), 1%, 2%, and 3%]. Moisture contents of samples containing red pepper seed powder were significantly higher than those of control (P<0.05). The lightness, redness, and yellowness of samples an increased with an increase in red pepper seed powder. Water holding capacity and dry yield of samples increased with increasing concentration of red pepper seed powder. However, shear force of samples showed a downward trend with increasing red pepper seed powder level. The sensory evaluation of samples containing 3% red pepper seed powder were highest. The results indicate that red pepper seed powder could be enhance the physicochemical properties of restructured chicken thigh jerky.

Monitoring of Red Pepper Powder and Seasoned Red-Pepper Sauce using Species-Specific PCR in Conjunction with Whole Genome Amplification

  • Hong, Yewon;Kwon, Kisung;Kang, Tae Sun
    • Journal of Food Hygiene and Safety
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    • v.33 no.2
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    • pp.146-150
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    • 2018
  • Red pepper is one of the most important spices popularly utilized in Korea. Because of the differences in tariff rates between red pepper powder and seasoned red-pepper sauce, seasoned red-pepper sauce is often therefore imported by consumers, then dried, ground, and added to red pepper powder for cost effective purposed to use the product the most effectively. In this study, we combined species-specific polymerase chain reaction (PCR) assays (for red pepper, garlic, onion, spring onion, and ginger) with whole-genome amplification (WGA). Thirty-nine red pepper powders were well in accordance with their labels. However, six red pepper powder and five seasoned red-pepper sauce products failed to meet their compliance requirements. As a consequence, our monitoring results revealed that the overall mislabeling rate detected in this study was identified at 22%. Thus, our findings showed that the species-specific PCR in conjunction with WGA was an ideal method to identify raw materials that are used in the manufacturing of red pepper powder and seasoned red-pepper sauce.