• Title/Summary/Keyword: Pickle

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Changes in the Pectic Substance during Ripening of Salted Cucumber Pickle (염지 오이피클의 숙성중 펙틴질의 변화)

  • 오영애;이만정;김순동
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.19 no.2
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    • pp.143-150
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    • 1990
  • The changesin hardness activities of pectinestrase and polygaacturonase and amounts of pectic substances of cucumber during salting at 1$0^{\circ}C$ were investigated, The hardness of the cucumber was decreased dramatically after 3 weeks whereas activities of pectinestrase and polygalacturonase were increased until 3 weeks and 2 weeks respectively and then decrea-sed. The level of alcohol insoluble solid and protopectin in the cucumber were decreased but those of pectic acid and water soluble pectin were increased during the whole salting periods, Protopectin fractionated from alcohol insoluble solid during salting of cucumber was separated using Sephacryl S-500 It showed that high average molecular weight(AMW) of 100,000 was decreased however lower molecular weight compounds was increased. Pectic acid was observed to be decomposed from AMW 200,000 to AMW 500,000 Water soluble pectin from fresh cucumber contained higher level of pentose with peak I of AMW 2,000,000, however after 6 weeks of saltinf peak II which represented AMW 100,000 was separated. From the changes of sugar composition, the phenomena of softness during the salting was probably caused by solubilization of hemicellulose associated with pectin and decomposition of pectic substances.

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Quality Characteristics of Whole and Peeled Garlic Jangachi(Korean Pickle) by Aging Period (껍질유무에 따른 마늘장아찌의 품질특성)

  • Jung, Hyeon-A;Jung, Hee-Sun;Joo, Na-Mi
    • Korean journal of food and cookery science
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    • v.23 no.6
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    • pp.940-946
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    • 2007
  • In this study, raw whole garlic and peeled garlic were pickled in brine, to test for changes in flavor compounds by aging period. Changes in pH, acidity and hardness were measured, and a sensory evaluation performed. The pH of the peeled garlic Jangachi in brine decreased as the aging period increased. The acidity increased as pH decreased, and the hardness tended to decrease as the aging time increased. For the peeled garlic Jangachi in brine, 3,3-thiobis-l-propene, allyl methyl trisulfide, diallyl trisulfide, and dimethyl trisulfide increased as aging proceeded, but allyl methyl disulfide and diallyl disulfide tended to decrease. In the sensory evaluation, hardness decreased as the aging time increased. Therefore, the above flavor compounds are considered to be major components of the characterized flavor of pickled garlic. When the overall quality was compared between the whole garlic Jangachi and peeled garlic Jangachi in brine after 60 days, the peeled garlic Jangachi was deemed superior.

Effects of the Jinan Red Ginseng Extract Treatment on Poloxamer 407-induced Hyperlipidemia in Rabbits

  • Choi, Kyung-Min;Lee, Jeong Ho;Adam, Gareeballah Osman;Kim, Shang-Jin;Kang, Hyung-Sub;Yang, Yeong-Seok;Kim, Gi-Beum
    • Korean Journal of Plant Resources
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    • v.30 no.6
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    • pp.601-611
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    • 2017
  • Hyperlipidemia is an increase in one or more of the plasma lipids, including triglycerides, cholesterol. Ginseng has been used as a valuable tonic and for the treatment of various diseases. The objective of this study was to evaluate the effects of Jinan red ginseng (JRG) water extract on the blood and serum in rabbits with hyperlipidemia induced by poloxamer 407 when supplied in drinking water. JRG treatment was performed for 20 weeks. We evaluated the effects of the JRG treatment on diabetes through hematological and biochemical analysis before and after JRG treatment were performed. Our results indicate that LDL, total cholesterol, and triglycerides were significantly decreased compared prior JRG supply. CRE, BUN, CK and UA levels indicating renal functions are significantly reduced when compared to those prior to the JRG supply. In addition, AST, ALT, ALP, and LDH were significantly reduced indicating hepatoprotective effect. Blood electrolytes deteriorated in HL rabbits were improved when JRG supplied. In conclusion, Biochemical and hematological analysis demonstrate that the JRG is effective to alleviate the hyperlipidemia signs.

N-Nitrosodimethylamine in the Kashmiri Diet and Possible Roles in the High Incidence of Gastrointestinal Cancers

  • Chikan, Naveed A.;Shabir, Nadeem;Shaffi, Sheikh;Mir, Manzoor R.;Patel, Trupti N.
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.3
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    • pp.1077-1079
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    • 2012
  • The Kashmiri population is culturally distinct with special dietary features owing to the temperate climatic conditions of Kashmir valley. This has habituated the population to preserve food in smoked, pickled and sundried forms which include considerable amounts of $N$-nitroso compounds (NOCs). These are known to cause cytotoxicity, DNA damage, mutation, unscheduled DNA synthesis and DNA methylation. All of these changes at molecular level are known to contribute to the pathogenesis of cancer. One of the prominent NOCs found in Kashmiri food is $N$-Nitrosodimethylamine (NDMA). Here we review the occurrence of NDMA in sundried foods, dried fish, kehwa, traditional pickle, $Brassica$ $oleracia$ and $tobbaco$. We also discuss its possible role in the high prevalence of gastrointestinal cancers in Kashmir.

Changes of Physicochemical Properties during Preparation of Prepersimmon Pickles (적과 단감의 장아찌 제조 중 이화학적 특성 변화)

  • 신동주;김광호;손규목;이승철;황용일
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.29 no.3
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    • pp.420-424
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    • 2000
  • 적과 단감은 비타민 A와 C등의 영양 성분이 함유되어 있으나 전량 폐기 처분되고 있다. 이러한 적과 단감의 이용가능성을 발견하기 위해 적과 부유 단감으로 15$^{\circ}C$, 60일간 숙성 중의 경도, 색도, pH 및 염도의 변화와 기호도, 색, 냄새, 염도 및 조직감 등을 10일간은 감소하였으나 이후 일시적으로 증가하였으며 30일 이후에는 감소하여 연화되었다. 색도의 변화는 명도(L)는 염수 장아찌와 고추장 장아찌 모두 숙성기간 중 감소하였으며 ΔE 값은 고추장 장아찌의 경우 처음 30일간, 염수 장아찌는 40일 RK지 증가 후 감소하였다. 고추장 장아찌와 염수 장아찌 pH의 변화는 처음 10일간은 큰 감소 폭을 나타내었지만 이후에는 서서히 감소하여 숙성 60일째에는 각각 4.5와 4.0을 나타내었다. 염도는 장아찌의 경우 점차 증가하여 60일째에는 고추장 장아찌 5.8, 염수 장아찌는 6.1이 되었으며 침지액의 염도는 점차 감소하여 60일 후에 각각 5.8과 5.4로 나타내었다. 각각의 장아찌에 대한 관능 검사를 실시한 결과 숙성 40일째에 기호도가 가장 높았으며 전반적인 기호도는 고추장 장아찌는 5.9, 염수 장아찌는 4.3으로 나타나 적과 단감을 이용한 고추장 장아찌의 이용 가능성을 발견할 수 있었다.

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Studies on the Composition of Kimchi (Part 3) -Oxidation-reduction Potential during Kimchi Fermentation- (김치 성분에 관한 연구 (제 3 보) -동치미의 산화환원 전위에 대하여-)

  • Chung, Dong-Hyo
    • Korean Journal of Food Science and Technology
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    • v.2 no.2
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    • pp.34-37
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    • 1970
  • The variation of acidity, pH and oxidation-reduction potentials of Dongchimi (a kind of large raddish pickle) during its fermentation was investigated. Estimation of oxidation-reduction potentials was carried out by the electric method. 1. Acidity was increased-3.5% by lactic acid and pH was decreased 3.4 during Dongchimi fermentation. 2. In Dongchimi, oxidation-reduction potentials was comparatively high (rH above 10) in the earlier stage and then decreased rapidly from rH 15 to 2.0 but slightly increased rH 5.0 in the later stage of the fermentation. 3. It is suggested that the earlier stage of fermentation was more aerobic condition than the later stage.

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Physiological Functionality of Gugija Products and an In Vivo Examination on Anti-hypertension Effects (구기자 가공품의 생리기능성 및 항고혈압 활성 검증)

  • Lee, Ji-Su;Park, Young-Chun;Paik, Seung-Woo;Lee, Sox-Su;Ahn, Yong-Kun;Lee, Jong-Soo
    • The Korean Journal of Food And Nutrition
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    • v.21 no.2
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    • pp.115-120
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    • 2008
  • To develop a new Gugija(Lycium chinensis Mill) product having increased value, the physiological functionality of various commercial Gugija products were investigated. In addition, an in vivo study was performed using spontaneous hypertensive rats(SHR) to examine the anti-hypertension effects of products. The results showed that antioxidant activity was highest in the methanol extract of Gugija leaf pickle(97.7%), and anti-hypertensive angiotensin I -converting enzyme(ACE) inhibitory activity was 80.4% in Gugija doenjang(soybean paste) water extract. Anti-cholesterolemia HMG-CoA reductase inhibitory activity was highest in the methanol extract of Gugija rice cake(66.1 %). However, SOD-like activity was below 30% in most products; and fibrinolytic activity was not detected or was very weak. Ultimately, we selected Gugija tea and Gugija wine as superior anti-hypertensive Gugija products, and subsequent in vivo testing was performed using SHR, comparing the tea and wine to Gugija fruit. Among them, the Gugija fruit demonstrated the best anti-hypertension effects in SHR.

A Study on the Contents of Sodium Saccharin in Kimchi and Salted Vegetables Served by Restaurants (외식업체에서 제공되는 김치류와 채소절임류의 삭카린나트륨 함량에 관한 연구)

  • Hong, Wan-Soo;Lee, Yeu-Lim;Ko, Jong-A;Lee, Jin-Sil
    • Korean Journal of Human Ecology
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    • v.20 no.6
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    • pp.1223-1228
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    • 2011
  • This study was done to investigate the content of sodium saccharin in Kimchi and salted vegetables served by restaurants. 99 samples were collected from restaurants which were located mainly in the Seoul metro area. Sodium saccharin was analyzed by HPLC. The types of restaurants were privately owned(68.7%) and franchised(31.3%). The composition ratio of sodium saccharin in Kimchi & salted vegetables at Korean, Chinese, Japanese, fast food, family, flour based food, and buffet restaurants was 60%, 14%, 2%, 7%, 13%, 4%, respectively. The composition ratio of sodium saccharin in kaktugi,, danmooji, kimchi, moosangchai, jangajji, mool kimchi, pickle, jjasai, oijii was 19.2%, 16.2%, 16.2%, 14.1%, 12.1%, 9.1%, 5.1%, 4.0%, 4.0% respectively. The mean of sodium saccharin detection rate of the 99 samples was 30.30%.

Effect of Heat Treatment and Salts Addition on Dongchimi Fermentation (열처리와 염의 첨가가 동치미 발효에 미치는 영향)

  • 강근옥;김종군;김우정
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.20 no.6
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    • pp.565-571
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    • 1991
  • A short time microwave heat treatment, bringing in hot NaCl solution, addition of KCI, CaCl2, MgCl2 into brining solution and salts mixture of phosphates into half fermented dongchim were investigated for their effects on some quality of dongchimi, a Korean pickle of Chinese radish roots, during fermentation. The reference dongchimi was prepared by brining the radish roots in 7% NaCl added with seasonings at $25^{\circ}C$. The result showed that microwave heat treatment affected little on the pH or total acidity change during fermentation. Soaking the roots in 80-9$0^{\circ}C$ hot salt solution significantly reduced the fermentation and softening rate of dongchimi while a rather rapid fementation was found for those soaked in 7$0^{\circ}C$. Addition of KCI and CaCl2 into brining solution slowed the pH decrease and softening of the roots, respectively. The dangchimi added with the salts mixture of phosphate, citrate and nitrite was significantly extreneded the fermentation time to pH 4.0 by more than two folds.

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A Study on Acid Recovering Process by Neutralization and Water-Splitting Electrodialysis (WSED) (중화법과 전기투석에 의한 산회수 공정연구)

  • Lee, Hong Joo;Moon, Seung-Hyeon;Park, Sung-Kook;Chun, Hee-Dong
    • Clean Technology
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    • v.3 no.2
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    • pp.74-86
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    • 1997
  • Recently the treatment of industrial wastes by membrane processes has drawn much attention due to increasing demands for clean technology. In the process investigated in this study, metal species in the acidic wastes are precipitated as metal hydroxide forms in a neutralization tank, and acid and base solutions are regenerated by water-splitting electrodialysis(WSED) to be reused in the process. Material balances of the processes for treating pickle liquor and mixed wastewater were calculated to explain conceptual design of the process. Experiments for neutralization precipitation with KOH and NaOH for mixed wastewater were carried out to precipitate metal hydroxide and to recover salt solution as supernatant. Also WSED of the salt solutions producing acid and base was tested in 2 or 3 compartment stacks using KCl and NaCl to investigate the effects of stack configurations on the WSED performance.

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