• 제목/요약/키워드: Maillard reaction products

검색결과 88건 처리시간 0.123초

열처리된 김치 첨가가 그라탱의 이화학적 품질 특성과 항산화 활성에 미치는 영향 (Effect of Heated-Kimchi Addition on the Physicochemical Characteristics and Antioxidant Activity of Gratin)

  • 김태준;서정희
    • 한국식품영양과학회지
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    • 제46권10호
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    • pp.1178-1185
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    • 2017
  • 그라탱과 김치의 퓨전을 위해 먼저 열처리가 김치의 항산화 활성에 미치는 영향을 살펴보았다. 김치를 $100^{\circ}C$에서 최대 60분까지 열처리하였을 때 가열시간이 길어질수록 김치의 갈변도와 색 강도는 유의적으로 증가하였으며 이 현상은 상대적으로 숙성이 더 진행된 김치에서 뚜렷하게 관찰되었다. 이는 김치 숙성에 따른 고분자 물질의 분해와 고온에서 가속화된 Maillard 갈변반응의 결과로 해석되었다. 총 환원력, 금속 소거능, DPPH 라디칼 소거 활성으로 측정된 김치의 항산화 활성 역시 가열시간이 길수록, 숙성이 진행될수록 증가하는 경향을 나타내었다. 이는 숙성과 열처리로 증가한 김치 속 비당체 형태의 페놀과 Maillard 반응 생성물(Maillard Reaction Products)의 환원성에서 기인한 것으로 보인다. 특히 $100^{\circ}C$, 10분 동안의 열처리에도 김치의 항산화 활성이 유의적으로 증가하였으며, 따라서 이 조건으로 가열한 김치를 20% 농도로 첨가하여 그라탱을 제조하였다. 열처리 김치첨가로 그라탱은 식이섬유, GABA, 오르니틴 함량이 유의적으로 증가하였다. 반면 김치 첨가로 우려되는 염 함량의 실질적 변화는 관찰되지 않았다. 열처리 김치에서 확인된 항산화 활성이 그라탱에서도 동일하게 관찰됨에 따라 김치의 항산화 기능성이 열처리 후에도 그라탱에 부가되었음을 확인해주었다. 이 결과들은 김치 그라탱 제조로 전통 발효식품인 김치의 영양성과 기능성이 그라탱에 실질적으로 부가되었음을 보여주었다. 이는 서구 음식과 우리 전통 발효 음식과의 다양한 퓨전을 통한 건강 지향적 제품 개발의 가능성을 시사해준다.

Maillard 형(型) 갈색화(褐色化) 반응액(反應液)에서 얻어진 Absolute Ethyl Alcohol 과 90% Ethyl Alcohol 추출물(抽出物)의 항산화효과(抗酸化效果)의 비교(比較) (Comparison of the Antioxidant Activity of Absolute Ethanol Extracts and 90% Ethanol Extracts obtained at Successive Stages of a Maillard-type Browning Reaction Mixture)

  • 이성수;이철;김동훈
    • 한국식품과학회지
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    • 제7권1호
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    • pp.37-42
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    • 1975
  • 본실험(本實驗) 에서는 여러 진행단계(進行段階)에서 있는 Maillard 형(形) 갈색화(褐色化) 반응물(反應物)에서 얻어지는 absolute 및 90% ethanol 추출물(抽出物)들의 색깔의 강도(强度)와 갈색화(褐色化) 반응시간(反應時間)과의 관계(關係) 이상(以上)의 추출물(抽出物)들의 식용유지(食用油脂)에 대한 항산화효과(抗酸化效果)의 비교검토(比較檢討), 그리고 以上의 추출물(抽出物)들의 색깔의 강도(强度)와 이들의 항산화효과(抗酸化效果)사이의 관계(關係)들을 규명(糾明)코저 하였다. 그 결과(結果)는 다음과 같다. 1. 갈색화(褐色化) 반응액(反應液)의 absolute ethanol 추출물(抽出物)들의 색깔은 갈색화(褐色化) 반응시간(反應時間)에 관계(關係)없이, 즉 갈색화(褐色化) 반응액자체(反應液自體)의 갈색화(褐色化)에 관계(關係)없이 거의 무색(無色)에 가까웠으며, 한편 90% ethanol 추출물(抽出物)은 반응시간(反應時間)에 따라 증가(增加)하였으며, 그 색깔의 강도(强度)는 반응시간(反應時間)에 거의 비례(比例)하였다. 2. Absolute 및 90% ethanol 추출물(抽出物)들은 다같이 식용대두유(食用大豆油)의 자동산화(自動酸化)에 대해서 상당(相當)한 항산화효과(抗酸化效果)를 보여 주었다. 한편, 두 형태(形態)의 추출물(抽出物)들에 있어서는 absolute ethanol 추출물(抽出物)들이 90% ethanol 추출물(抽出物)들보다 전체적(全體的)으로 훨씬 강(强)한 항산화효과(抗酸化效果)를 보여주었다. 3. 갈색색소(褐色色素)의 함량(含量)이 분명(分明)히 적은 absolute ethyl alcohol 추출물(抽出物)들이 다량(多量)의 갈색색소(褐色色素)를 함유하고 있는 90% ethanol 추출물(抽出物)들보다 훨씬 더 강(强)한 항산화력(抗酸化力)을 표시(表示)한 사실(事實), 그리고 90% ethanol 추출물(抽出物)들의 항산화효과(抗酸化效果)가 그 색깔의 강도(强度)의 증가(增加)에 따라 증가(增加)하지 않았던 사실(事實)들은 적어도 본실험(本實驗)에서는 반응(反應)중에 형성(形成)된 갈색색소(褐色色素)들이 이상(以上)의 추출물(抽出物)들의 항산화작용(抗酸化作用)에 크게 관여(關與)하지 않고 있음을 시사하고 있는듯 하다.

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Flavour Chemistry of Chicken Meat: A Review

  • Jayasena, Dinesh D.;Ahn, Dong Uk;Nam, Ki Chang;Jo, Cheorun
    • Asian-Australasian Journal of Animal Sciences
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    • 제26권5호
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    • pp.732-742
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    • 2013
  • Flavour comprises mainly of taste and aroma and is involved in consumers' meat-buying behavior and preferences. Chicken meat flavour is supposed to be affected by a number of ante- and post-mortem factors, including breed, diet, post-mortem ageing, method of cooking, etc. Additionally, chicken meat is more susceptible to quality deterioration mainly due to lipid oxidation with resulting off-flavours. Therefore, the intent of this paper is to highlight the mechanisms and chemical compounds responsible for chicken meat flavour and off-flavour development to help producers in producing the most flavourful and consistent product possible. Chicken meat flavour is thermally derived and the Maillard reaction, thermal degradation of lipids, and interaction between these 2 reactions are mainly responsible for the generation of flavour and aroma compounds. The reaction of cysteine and sugar can lead to characteristic meat flavour specially for chicken and pork. Volatile compounds including 2-methyl-3-furanthiol, 2-furfurylthiol, methionol, 2,4,5-trimethyl-thiazole, nonanol, 2-trans-nonenal, and other compounds have been identified as important for the flavour of chicken. However 2-methyl-3-furanthiol is considered as the most vital chemical compound for chicken flavour development. In addition, a large number of heterocyclic compounds are formed when higher temperature and low moisture conditions are used during certain cooking methods of chicken meat such as roasting, grilling, frying or pressure cooking compared to boiled chicken meat. Major volatile compounds responsible for fried chicken are 3,5-dimethyl-1,2,4-trithiolanes, 2,4,6-trimethylperhydro-1,3,5-dithiazines, 3,5-diisobutyl-1,2,4-trithiolane, 3-methyl-5-butyl-1,2,4-trithiolane, 3-methyl-5-pentyl-1,2,4-trithiolane, 2,4-decadienal and trans-4,5-epoxy-trans-2-decenal. Alkylpyrazines were reported in the flavours of fried chicken and roasted chicken but not in chicken broth. The main reason for flavour deterioration and formation of undesirable "warmed over flavour" in chicken meat products are supposed to be the lack of ${\alpha}$-tocopherol in chicken meat.

Maillard 반응에 의한 고온가압처리 연어 frame 추출물의 비린내 개선 (Improvement in the Fish Odor of Extracts Obtained from Salmon Frame using the Maillard Reaction Treated at High Temperature and Pressure)

  • 지승길;구재근;권재석;한병욱;김형준;허민수;김진수
    • 한국수산과학회지
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    • 제42권4호
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    • pp.316-321
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    • 2009
  • This study was conducted to improve the fish odor of extracts obtained from salmon frame. Salmon frame extracts were prepared using four kinds of pretreated salmon frame (salmon frame soaked in soybean milk and fried salmon frame) or containing additives (cystine and xylose-added salmon frame, and methionine and xylose-added salmon frame). Among the extracts prepared in this study, extracts containing cystine and xylose had the highest volatile component intensity and odor sensory score. These suggested that the fish odor of salmon frame extracts can be reduced by adding cystine and xylose before extraction.

효소 처리된 닭고기 부산물에서 헝성된 pyrazines의 비교 (Comparison of Pyrazines Formed in Chicken By-Products Hydrolyzed by Enzymes)

  • 손성희;조인희;김영석
    • 한국식품조리과학회지
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    • 제20권3호
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    • pp.265-270
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    • 2004
  • To investigate the formation of pyrazines, by-products of chicken were hydrolyzed by protease/peptidase for 4, 8 and 24 hours, after which the hydrolysates were heated with glucose, fructose and xylose, respectively, at l80$^{\circ}C$ for l00min. The formation of pyrazines showed a significant difference by quality and quantity according to the degree of protein hydrolysis. Especially, the formation of 2-methyl pyrazine and 2-ethyl-5-methyl pyrazine was considerably affected by, the degree of protein hydrolysis. Also, 3-ethyl-5-methyl pyrazine, 2-butyl-3-methyl pyrazine, 2-butyl-3,5-dimethyl pyrazine, methyl pyrazine, and 3-ethyl-5-methyl pyrazine were identified only in the hydrolysates for 24 hours.

Melanoidin의 항산화성 및 항돌연변이원성 (Antioxidative and Antimutagenic Characteristics of Melanoidin Related Products)

  • 최홍식;이창용
    • 한국식품영양과학회지
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    • 제22권2호
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    • pp.246-252
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    • 1993
  • Melanoidins, as brown colored polymers, are formed through the diversified reaction systems of Maillard type and other reactions. Melanoidins are important components in relation to food quality and also are known to have antioxidative, mutagenic and antimutagenic activities. Since these aspects have been extensively reviwed elsewhere, only the recent studies regarding to their antioxidative and antimutagenic activities are discussed in this review. Even though their mechanisms are not clearly identified, melanoidins or specific fractions isolated from their mixtures have shown varied antioxidative activities depending on the reaction systems and reaction conditions. Those activities presumely are derived from the complex functional properties of hydrogen / electron donors and metal chelating power, which are originated from their reductone structure and others. It is considered that pyrolysate and other mutagens are formed by the given conditions in some cases during browning reaction, whereas melanoidins and their fractions have antimutagenic effects on chemical and other mutagens. There are positive correlationship among the color intensity, antioxidative activity and antimutagenicity of melanoidins or their fractions. These suggest that the antimutagenicity of melanoidins could be attributed to their antioxidative properties, however, it might also be due to other factors, because the relevant responses for antimutagenicity are very complicate and not clear. Accordingly, further studies are required to determine the actual acitivities and mechanisms involved in antioxidation and (anti)mutagenicity of melanoidins by reaction systems / conditions and by the isolated fractions. And also, additional studies are needed to evaluate the applications of melanoidins and their relevant effects to food and human health.

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Effect of Different Cations on Pidan Composition and Flavor in Comparison to the Fresh Duck Egg

  • Ganasen, Palanivel;Benjakul, Soottawat;Hideki, Kishimura
    • 한국축산식품학회지
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    • 제33권2호
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    • pp.214-220
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    • 2013
  • The effects of different cations on its composition and flavor characteristics of pidan white and yolk produced with duck egg in comparison to its fresh egg were investigated. Mineral content such as calcium, magnesium, sodium and potassium were significantly increased in pidan yolk irrespective of its cations in pickle solution in comparison to the fresh yolk (P<0.05). It confirmed the migration of minerals from the pickling solution to the egg. However, calcium and magnesium was found lower in 0.2% $PbO_2$ treated pidan. Less pidan flavor compounds were generated in pidan white produced with the aid of 0.2% $PbO_2$. It confirmed that binding of lead prevent the maillard reaction in the pidan treated with $PbO_2$. Benzaldehyde, ketones, alcohol and acid found in the pidan white treated with 0.2% $ZnCl_2$ reveals that volatiles are generated most likely from maillard reaction. However, pidan yolk of both 0.2% $PbO_2$ and 0.2% $ZnCl_2$ showed higher generation of volatiles more likely from yolk lipids. Butanal, pentanal, hexanal, and heptanal are of those aldehydes found in 0.2% $ZnCl_2$ treated pidan yolk whereas hexanal is the only aldehyde detected in 0.2% $PbO_2$ treated pidan yolk. Thus, cations in the pickling solution affect the flavor characteristics of pidan white and yolk.

In situ analysis of chemical components induced by steaming between fresh ginseng, steamed ginseng, and red ginseng

  • In, Gyo;Ahn, Nam-Geun;Bae, Bong-Seok;Lee, Myoung-Woo;Park, Hee-Won;Jang, Kyoung Hwa;Cho, Byung-Goo;Han, Chang Kyun;Park, Chae Kyu;Kwak, Yi-Seong
    • Journal of Ginseng Research
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    • 제41권3호
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    • pp.361-369
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    • 2017
  • Background: The chemical constituents of Panax ginseng are changed by processing methods such as steaming or sun drying. In the present study, the chemical change of Panax ginseng induced by steaming was monitored in situ. Methods: Samples were separated from the same ginseng root by incision during the steaming process, for in situ monitoring. Sampling was sequentially performed in three stages; FG (fresh ginseng) ${\rightarrow}$ SG (steamed ginseng) ${\rightarrow}$ RG (red ginseng) and 60 samples were prepared and freeze dried. The samples were then analyzed to determine 43 constituents among three stages of P. ginseng. Results: The results showed that six malonyl-ginsenoside (Rg1, Rb1, Rb3, Rc, Rd, Rb2) and 15 amino acids were decreased in concentration during the steaming process. In contrast, ginsenoside-Rh1, 20(S)-Rg2, 20(S, R)-Rg3 and Maillard reaction product such as AF (arginine-fructose), AFG (arginine-fructose-glucose), and maltol were newly generated or their concentrations were increased. Conclusion: This study elucidates the dynamic changes in the chemical components of P. ginseng when the steaming process was induced. These results are thought to be helpful for quality control and standardization of herbal drugs using P. ginseng and they also provide a scientific basis for pharmacological research of processed ginseng (Red ginseng).

홍삼으로부터 분리한 수용성 갈변물질의 항산화 활성 1. DPPH의 수소공여능 및 hydrogen peroxide 소거능 중심으로 (Antioxidant Activity of the Water Soluble Browning Reaction Products Isolated from Korean Red Ginseng 1. DPPH Radical and Hydrogen Peroxide Scavenging)

  • 이종원;도재호;심기환
    • Journal of Ginseng Research
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    • 제23권3호
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    • pp.176-181
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    • 1999
  • 홍삼에서 분리한 수용성 갈변물질의 항산화 활성을 DPPH 수소공여능 및 hydrogen peroxide 시스템에서 조사한 결과를 다음과 같다. 1. DPPH 수소공여능 수용성 갈변물질 S-1, S-2는 반응시간이 경과함에 따라 완만하게 감소하였고, L은 S-1, S-2보다 시간이 경과 함에 따라 감소폭이 증가하였다. L의 경우 BHT, BHA $5{\times}10^{-4}M,\;{\alpha}-tocopherol\;1{\times}10^{-4}M$ 및 ascorbic acid $5.7{\times}10^{-3}M$ 보다 감소폭이 증가하였으나, S-1, S-2는 합성 항산화제와 감소폭이 비슷하였다. 2. Synergist 효과 L, S-1 및 S-2 와 상기의 합성 항산화제 농도와 시너지스트 효과를 조사한 결과, 모든 시험구에서 반응 시간이 경과 함에 따라 감소폭이 증가하여 시너지스트 효과가 나타났다. 3. Hydrogen Peroxide 소거능 :수용성 갈변물질의 hydrgen peroxide 소거능을 조사한 결과, L은 $50\~80\%$, S-1은 $70\~100\%,$ S-1은 모든 첨가구에서 반응 초기부터 $100\%$로 완전히 소거되었다.

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