• 제목/요약/키워드: fermented squid

검색결과 72건 처리시간 0.028초

발효촉진제를 첨가하여 제조한 오징어 조미료의 품질특성 (Quality Properties of Fermented Squid Seasoning Manufactured with Fermentation Accelerator)

  • 최승화;김상무
    • 한국식품과학회지
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    • 제43권3호
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    • pp.334-340
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    • 2011
  • 본 연구는 오징어 육에 발효촉진제를 첨가하여 발효한 오징어 조미료 소재 개발을 목적하며 결과를 요약하면 다음과 같다. Asp. oryzae koji를 10%첨가하여 발효하였을 때 아미노질소량이 가장 높았고 휘발성 염기질소량이 가장 낮았으며, pH의 감소량이 크고 산도가 높아 발효에 가장 알맞은 조건이었으며, 10일간 발효하였을 때 아미노질소량이 가장 높아 발효생성물을 제조하기에 가장 적합하였다. Asp. oryzae koji 10%의 농도에 10일간 발효한 오징어 육 발효생성물의 유리 아미노산 조성은 감칠맛을 내는 아미노산인 glutamic acid의 함량이 가장 많았고 핵산관련물질 중 감칠맛을 내는 IMP가 쓴맛을 내는 hypoxanthine보다 많아 식품 정미소재로 이용하기에 적합하였다. 항산화 및 ${\alpha}$-glucosidase 저해활성은 농도 의존적으로 증가하였으며, 항산화 및 소장에서 단당류의 생성을 억제하여 혈당을 낮출 수 있는 가능성이 있는 기능성 소재로서의 활용가능성도 있다고 보여진다. 오징어 발효생 성물에 부재료를 첨가하여 조미료를 제조한 결과 시판 천연조미료와 비교하여 관능적으로 큰 차이가 없었다. 이상의 결과를 고려할 때 오징어 육 발효생성물은 기능성 소재로의 활용에 대하여는 추가연구가 필요하지만, 천연조미료 등 식품 정미 소재로써 활용이 가능하다고 판단된다.

Differential anticancer effect of fermented squid jeotgal due to varying concentrations of soymilk additive

  • Akther, Fahima;Cheng, Jinhua;Yang, Seung Hwan;Chung, Gyuhwa
    • Journal of Applied Biological Chemistry
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    • 제60권2호
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    • pp.133-136
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    • 2017
  • Fermentation plays a vital role in the nutritional enrichment of food. Korea has a long tradition of adding fermented food to the daily diet and jeotgal is one of the common fermented and salted foods in Korean cuisine. In our study, we added soymilk as an additive to squid jeotgal to improve its functionality. We mixed different concentrations of soymilk (2, 5, and 10 mg/g) with squid jeotgal samples, fermented them for one week, and then tested their antioxidant and anticancer activities to compare with those of squid jeotgal samples without soymilk additive. To investigate the anticancer characteristics, glutathione-S-transferase (GST)-pi enzyme assay was used. To test the antioxidant activities, various assays were performed, including 2,2-diphenyl-1-picryl hydrazyl free radical scavenging activity, 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium saltradical cation scavenging assay, and reducing power assay. Samples fermented with a small amount of soymilk showed excellent anticancer activity. The addition of only 2 mg/g of soymilk to squid jeotgal inhibited the activity of GST-pi by almost 50% when compared with the sample with no addition. Moreover, no undesirable bitterness or astringency was noticed. Our results could help to improve the current food status of squid jeotgal and it could be used to reduce the risk of chronic disease along with its basic nutritional function.

Variation of the antioxidant activity of squid jeotgal by altering the level of added soy isoflavones and storage duration

  • Le, Bao;Ngoc, Anh Pham Thi;Yang, Seung Hwan
    • International journal of advanced smart convergence
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    • 제8권2호
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    • pp.68-76
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    • 2019
  • In this study, we propose a squid jeotgal, Korean fermented seafood, supplement with different soy isoflavones supplements, followed by fermentation for different time intervals at $4^{\circ}C$ to increase the antioxidant activity and improve the food value. In the first month, fermented jeotgals with at lowconcentration ($2mg\;g^{-1}$) of added soy isoflavones showed a significant increase in the activity of up to 55%, whereas, at high concentration ($10mg\;g^{-1}$), the activity almost doubled compared to that of the sample without isoflavones. Moreover, the squid enriched with isoflavones also exhibited significantly decreased total volatile base nitrogen, thiobarbituric acid reactive substances, and biogenic amines, indicative of higher inhibition of the formation of these substances. The changes in the microbial profile were also evaluated. This use of soy isoflavanones as an additive could aid in improving the nutritional value of fermented seafood to reduce the incidence of age-related and chronic disorders.

꼴뚜기젓의 정미성분(呈味成分) (The Taste Compounds of Fermented Squid, Loligo kobiensis)

  • 이응호;성낙주
    • 한국식품과학회지
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    • 제9권4호
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    • pp.255-263
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    • 1977
  • 젓갈은 우리나라에서 옛부터 즐겨 먹어온 수산발효식품(水産醱酵食品)으로서 우리나라 고유(固有)의 젓갈이 많지만, 이에 대한 상세(詳細)한 연구보고(硏究報告)는 의외(意外)로 적다. 본(本) 실험(實驗)에서는 꼴뚜기젓의 정미성분(呈味成分)을 밝히기 위하여 선도(鮮度) 좋은 꼴뚜기를 원료(原料)로써 젓갈 숙성(熟成) 중의 핵산(核酸) 관련물질(關聯物質), 유리아미노산(酸), TMAO, TMA 및 betaine의 변화(變化)를 실험(實驗)하였다. 꼴뚜기젓 숙성(熟成) 중 ADP, AMP 및 inosine은 현저히 감소(減少)하는 반면(反面) hypoxanthine은 급증(急增)하여 숙성(熟成) 91일(日) 후(後)에는 건물량기준(乾物量基準) $9.3{\mu}mole/g$로서 원료(原料)에 비(比)하여 3.9배(倍) 증가(增加)하였다. 원료(原料)의 유리아미노산(酸) 조성(組成)을 보면, 함량(含量)이 많은 것은 Pro, Tau이고 다음이 Ala, Arg, Ser, Glu, Lys, Gly, Leu 및 Val이며, 함량(含量)이 적은 것은 Phe, Met. Tyr, Ileu, His의 순(順)이었다. 함량(含量)이 특(特)히 많은 아미노산(酸)의 전(全) 유리아미노산(酸)에 대한 비율(比率)을 보면, Pro 40.2%, Tau 32.0%로서 이들 2종(種)의 아미노산(酸)이 72.2%를 차지하였고, 엑스분질소(分窒素) 중 전(全)유리아미노산질소(酸窒素)가 차지하는 비율(比率)도 64.9%로서 높은 편이었다. 꼴뚜기젓 숙성(熟成) 중 유리아미노산(酸)의 양적(量的) 변화(變化)는 있으나 조성(組成)에는 변화(變化)가 없었다. 꼴뚜기젓의 유리아미노산(酸) 중 함량(含量)이 많은 것은 Pro, Leu, Lys, Ser, Arg, Ala, Val이고, Ileu, Phe, Met등도 상당히 많았으며, Glu, His등은 함량(含量)이 적었고 Tau과 Tyr은 흔적량에 불과(不過)하였다. betaine은 젓의 숙성(熟成)과 더불어 증가(增加)하기 시작하여 숙성(熟成) 91일(日)까지 증가(增加)하다가 그 후(後) 약간 감소(減少)하였다. TMAO는 숙성(熟成) 중 감소(減少)하는 반면(反面) TMA는 증가(增加)하였다. 63일간(日間) 숙성(熟成)시킨 꼴뚜기젓에는 건물량기준(乾物量基準)으로 TMAO질소(窒素)가 432.3mg%로서 상당히 많은 함량(含量)이었다. 꼴뚜기젓의 정미성분(呈味成分)으로서는 Pro, Leu, Ser, Lys, Arg, Ala, Val, Ileu, Phe, Met 및 Gly등과 같은 유리아미노산(酸)과 단맛을 가진 betaine, TMAO 그리고 핵산(核酸) 관련물질(關聯物質)로서는 hypoxanthine등이 중요(重要)한 정미성분(呈味成分)이라는 결론(結論)을 얻었다.

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저염 오징어젓갈 숙성중 젖산균의 변화 (Changes in Lactic Acid Bacteria of Squid with Low Salt during Fermentation)

  • 조진호;오세욱;김영명;정동효;김정임
    • 한국식품과학회지
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    • 제29권6호
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    • pp.1208-1212
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    • 1997
  • 수분활성을 조절한 오징어육으로 제조한 저염 오징어젓갈의 우점 미생물을 분리 동정하고 숙성중 변화를 조사하였다. 우점미생물은 젖산균으로 Lactobacillus plantarum, Lactobacillus brevis, Leuconostoc sp., Pediococcus sp., Streptococcus sp.,로 동정되었으며 총균수의 80%를 차지하였다. 숙성중 Leuconostoc, Streptococcus, Pediococcus는 초기에 급격히 증가하였다가 숙성적기 이후에 급속히 감소하였으며 Lactobacillus는 숙성적기 이후에 급격히 증가하였다. 한편, yeast는 숙성중기 이후에 검출되었으며 숙성말기에 급격히 증가하여 주로 부패에 관여하는 것으로 사료되었다.

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Pyrosequencing-Based Analysis of the Bacterial Community in Korean Traditional Seafood, Ojingeo Jeotgal

  • Jung, Jaejoon;Choi, Sungjong;Jeon, Che Ok;Park, Woojun
    • Journal of Microbiology and Biotechnology
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    • 제23권10호
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    • pp.1428-1433
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    • 2013
  • Jeotgal fermentation is dependent upon a diverse microbial community, although a detailed understanding of its microbial composition is limited to a relatively small number of jeotgal. Pyrosequencing-based bacterial community analysis was performed in fermented squid, ojingeo jeotgal. Leuconostoc was identified as the predominant bacterial genus, with Bacillus and Staphylococcus also accounting for a large proportion of the bacterial community. Phylogenetic analysis with 16S rRNA genes of Leuconostoc type species indicated that L. citreum- and L. holzapfelii-like strains could be the major Leuconostoc strains in jeotgal. High concentrations of NaCl were thought to be an important factor determining the makeup of the bacterial community in the fermented squid; however, a genomic survey with osmotic stress-related genes suggests the existence of more complex factors selecting the dominant bacterial species in fermented squid.

Functional Properties of Squid By-products Fermented by Probiotic Bacteria

  • Xu, Hua;Gou, Jingyu;Choi, Geun-Pyo;Lee, Hyeon-Yong;Ahn, Ju-Hee
    • Food Science and Biotechnology
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    • 제18권3호
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    • pp.761-765
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    • 2009
  • The effects of probiotic bacteria on the functional properties of squid by-products were investigated during fermentation. Bifidobacterium longum, Lactobacillus acidophilus, Lactobacillus brevis, Lactobacillus casei, Lactobacillus paracasei, Lactobacillus rhamnosus, and Pediococcus acidilactici were used to ferment the squid by-products for 96 hr at $37^{\circ}C$. The numbers of all probiotics increased to $10^7-10^8$ CFU/g after 96 hr fermentation. No substantial pH changes were observed. L. rhamnosus and P. acidilactici showed the highest 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activities. Interleukin-6 (IL-6) and tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$) secreted from B cells increased after adding the extracts of probiotic-fermented squid by-products. The human NK cells were grown well in the B cell-growing broth cultured with the extracts of squid by-products fermented by L. rhamnosus and P. acidilactici. Trimethylamine (TMA) and dimethylamine (DMA) contents were significantly decreased after probiotic-fermentation. Therefore, L. rhamnosus GG and P. acidilactici can be used for the fermentation of squid by-products and their use would provide benefits in functional food products.

온라인에서 유통 중인 국내산 및 수입산 오징어(Todarodes pacificus) 젓갈의 미생물학적 오염도 조사 (Microbiological Contamination in Domestic and Imported Squid Todarodes pacificus Jeotgal Distributed at On-line Marketplaces: An Investigation)

  • 송민규;김소희;박신영
    • 한국수산과학회지
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    • 제55권4호
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    • pp.437-442
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    • 2022
  • Squid jeotgal is a very popular traditional, salted, and fermented seafood in Korea. Due to the development of a distribution structure, a lot of imported squid jeotgal has recently entered Korea. In this study, we analyzed and compared the microbial contamination levels of domestic and imported squid jeotgal. The total viable bacterial count in domestic and imported jeotgal was 5.20 and 5.38 log CFU/g, respectively. The highest contamination level was 6.94 log CFU/g in one of the imported squid jeotgal samples. Coliforms were not detected in domestic jeotgal but were detected at 50% with 2.21 log CFU/g in imported jeotgal. Escherichia coli and Staphylococcus aureus were not detected (ND: <1 log CFU/g) in both domestic and imported jeotgal. All samples of jeotgal were negative for Bacillus cereus and Clostridium perfringens. The microbial contamination levels determined in the current study may be utilized as primary data to execute microbial risk assessments on domestic and (or) imported jeotgal.

저염 오징어 젓갈의 숙성에 따른 휘발성염기질소 및 유리 아미노산의 변화 (Changes of the Volatile Basic Nitrogen and Free Amino Acids according to the Fermentation of Low Salt Fermented Squid)

  • 오성천;조정순;남혜영
    • 한국식품조리과학회지
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    • 제16권2호
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    • pp.173-181
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    • 2000
  • To understand the influences of NaCl concentration and fermentation temperature on the ripening process of low salt fermented squids, squid with 5%, 7% and 9% salt were fermented at 10$\^{C}$ and 20$\^{C}$. The result of the changes of volatile basic nitrogen and free amino acids during the fermentation of squids are as follows. As a result of the observations on the changes of physicochemical components during the fermentation process of the low-salted squids, all the pH, VBN and NH$_2$-N were increased and therefore the fermentation was promoted. Considering the changes of net components according to the fermentation, ATP (Adenosine triphosphate) and ADP (Adenosine diphosphate) lost and could not be detected among the nucleotides and their related compounds. Besides, AMP (Adenosine monophosphate) existed only in the initial stage and inosine, hypoxanthine were the main components of nucleotides and their related compounds. Nonvolatile organic acids are mainly lactic acid, acetic acid and also they occupied more than 80%. Seeing the composition of free amino acid, the major amino acids are proline, arginine, methionine, alanine and glutamic acid.

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오징어 간 액젓으로부터 분리된 Angiotensin Converting Enzyme 저해 Peptide의 특성 (Characteristics of Angiotensin Converting Enzyme Inhibitory Peptides from Salt-fermented Squid Liver Sauce)

  • 박영범
    • 한국식품영양과학회지
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    • 제39권11호
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    • pp.1654-1659
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    • 2010
  • 오징어 가공 부산물인 오징어 간의 효율적 이용을 위하여 오징어 간을 이용하여 액젓을 제조하고 이들 액젓의 ACE 저해효과를 살펴보았다. 액젓의 ACE 저해활성은 12개월까지는 점차적으로 증가하였으나 그 이후에는 저해활성이 둔화되어 거의 일정한 저해활성을 유지하였다. 숙성 액젓 중 15개월째 액젓($IC_{50}=29.66\;{\mu}g$)을 한외여과막으로 통과시켜 회수한 분자량 10,000 Da 이하의 저분자물질을 Bio-gel P-2 gel chromatography를 행하여 ACE 저해효과를 가지는 3개획분을 분취하였다. 이들 획분 중에서 ACE 저해효과가 가장 높은 B 획분을 SuperQ-Toyopearl 650S column을 이용한 음이온 교환크로마토그래피에 의해 B-1의 활성획분을 분리하였다. 획분 B-1의 아미노산 조성은 lysine, glycine 및 proline의 함량이 가장 많아 전체의 약 85%를 차지하였으며 $IC_{50}$$5.46\;{\mu}g$으로 나타났다.