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한국식품과학회> Food Science and Biotechnology(구 Foods and Biotechnology)

Food Science and Biotechnology(구 Foods and Biotechnology)

Food Science and Biotechnology

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수록정보
수록범위 : 1권1호(1992)~17권3호(2008) |수록논문 수 : 1,748
Food Science and Biotechnology(구 Foods and Biotechnology)
17권3호(2008년 06월) 수록논문
최근 권호 논문
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KCI등재

1Review : Promises and Risks of Unsaturated Volatile Organic Compounds: Limonene, Pinene, and Isoprene

저자 : Kyong Suk Jin , Mi Ra Jun , Min Ji Park , Seon Ok , Jae Han Je

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 447-456 (10 pages)

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Limonene, pinene, and isoprene are abundant and ubiquitous volatile organic compounds (VOCs) which are found in various natural products and also produced from various manufacture processes. Limonene and pinene are major components of food additives and household products for enrichment of good flavors and elimination of malodors, and isoprene is a basal motif of monoterpenes such as limonene and pinene. They have shown many beneficial effects such as chemopreventive, chemotherapeutic, and antioxidant activities. Upon certain conditions, however, adverse effects of these compounds on human health have also been reported. Although they do not seem to have acute and severe toxicity to human, they can easily generate secondary organic aerosols (SOAs) when they react with oxygen and/or ozone, which have shown certain toxic effects on experimental animal models as well as on humans. Numerous household and scented products containing limonene, pinene, and isoprene are widely used in these days. However, biological consequences upon exposure to these products are largely unknown. The aim of this review is to summarize and analyze the current understanding on the biological effects of VOCs, in particular limonene, pinene, and isoprene, as well as their SOAs.

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The effects of dietary supplementation of the unrefined rice bran oil from ``Suwon 415`` pigmented black rice (BRBO) on cholesterol metabolism and cellular antioxidant status were investigated in hypercholesterolemic rats. The significant reduction of total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) concentrations was observed in the plasma of rats fed BRBO. BRBO also decreased plasma and hepatic oxidative stress as a result of increased levels of hepatic thiobarbituric acid reactive substances (TBARS) levels associated with the elevations of hepatic superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) activities together with increased plasma level of tocopherol. This study indicates that dietary BRBO supplement can leads to the improvement of overall cholesterol metabolism and antioxidant status even more effectively than ``Chuchung`` white rice (WRBO). Consumption of BRBO may also protect the liver from oxidative damage caused by lipid peroxidation.

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3Research Articles : Evaluation of Skin Sebosuppression by Components of Total Green Tea (Camellia sinensis) Extracts

저자 : Jeong Kee Kim , Hyun Jung Shin , Byeong Gon Lee , Sang Jun Lee

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 464-469 (6 pages)

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In human beings, it is known that there is a correlation between the occurrence of acne and the ability to suppress sebum. Sebosuppression may be related to the inhibition of sebocyte proliferation, differentiation, and lipogenesis in sebaceous glands. To investigate the skin sebosuppressive activity of green tea extract, the in vivo effects of its flavonoid compounds on the androgen-dependent stimulation of pigmented macules in hamsters and performed in vitro experiments with human primary sebocytes were examined. Our results imply a dual activity of skin sebosuppression by green tea flavonoids; some catechins including epigallocatechin-3-gallate (EGCG) and gallocatechin-3-gallate (GCG) may reduce the differentiation of sebocytes by inhibiting PPAR-γ1 mRNA expression, whereas some flavonol glycosides including kaempferol may inhibit lipogenesis in sebaceous glands by decreasing levels of the mature form of sterol-sensitive response elements binding protein-1c (SREBP-1c). Therefore, green tea is a potentially effective material for use in the development of health foods or cosmetics for skin sebosuppression.

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4Research Articles : Supercritical CO2 Extraction of Whole Berry Oil from Sea Buckthorn (Hippophae rhamnoides var. sp) Fruit

저자 : Xiang Xu , Yan Xiang Gao , Guang Min Liu , Yuan Yuan Zheng , J

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 470-474 (5 pages)

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The whole berry, pulp, and seed of sea buckthorn fruit were extracted with supercritical CO2 to produce edible oils. The effects of extraction pressure, temperature, and CO2 flow rate on the oil yield and extraction rate were investigated, and the fatty acid composition, tocopherol, and carotenoid contents of the oils were compared. The results showed that the extraction rate was affected by pressure, temperature, and CO2 flow rate and, in general, the yield increased with a rise in any of the 3 variables. Fatty acids in the whole berry and pulp oil were dominated by monounsaturated fatty acids (>64%), followed by saturated fatty acids (about 30%). In contrast, fatty acids in the seed oil consisted mainly of polyunsaturated (>60%) and monounsaturated fatty acids (>24%). The seed oil had a slightly higher content of tocopherols, but a much lower content of carotenoids, compared with the whole berry or pulp oil.

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5Research Articles : Identification and Characterization of Phytochemicals from Peanut (Arachis hypogaea L.) Pods

저자 : Jin Hwan Lee , In Youl Baek , Tae Joung Ha , Myoung Gun Choung ,

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 475-482 (8 pages)

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Methanol extracts of peanut (Arachis hypogaea L.) pods were chromatographed, which yielded 3 phytochemicals 1-3 including 5,7-dihydroxychromone (1), eriodictyol (2), and 3`,4`,5,7-tetrahydroxyflavone (3). To confirm the presence of isolated phytochemicals, the pods extracts were performed by high performance liquid chromatography coupled with a photodiode array detector (HPLC-PDA) and a mass spectrometric detector (MSD) with electrospray ionization (ESI). Optimum extraction conditions for phytochemical contents using peanut germplasm were obtained by employing 90% MeOH for 12 hr at room temperature and phytochemicals 1-3 showed significant differences with concentrations of 407.56±23.35, 52.92±5.11, and 2,024.34±134.18 μg/g, respectively. Under this optimal conditions, the contents of phytochemicals 1-3 in peanut pods of 3 Korea cultivars including ``Jakwang``, ``Daekwang``, and ``Palkwang`` exhibited phytochemical 3 was the highest range of 1,338.01-5,162.93 μg/g, followed by phytochemical 1 (590.13-1,382.10 μg/g), and phytochemical 2 (25.12-186.85 μg/g), respectively. Moreover, ``Jakwang`` exhibited the highest contents of phytochemical (1: 1,362.10±52.49, 2: 186.85±17.69, and 3: 5,162.93±148.64 μg/g, respectively), whereas the lowest contents was found in the ``Daekwang`` (1: 590.13±22.23, 2:25.12±2.45, and 3: 1,338.01±62.17 μg/g, respectively). These results suggest that the methanol extracts of peanut pods may possess health related benefits to humans owing to various known biological activities of phytochemicals 1-3.

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6Research Articles : Analysis of Major Foodborne Pathogens in Various Foods in Korea

저자 : Mi Gyeong Kim , Mi Hwa Oh , Gun Young Lee , In Gyun Hwang , Hy

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 483-488 (6 pages)

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Foodborne pathogenic bacteria in various food samples in Korea were monitored and the obtained data was statistically analyzed. A total of 1,240 food samples including 280 sashimi, 244 processed frozen products, 258 kimbab (cooked rice wrapped with seaweed), 337 soybean pastes were obtained from 7 cities including Seoul in Korea. Microorganisms tested were Bacillus cereus, Salmonella spp., Staphylococcus aureus, Escherichia coli, E. coli O157:H7, Vibrio parahaemolyticus, Yersinia enterocolitica, Listeria monocytogenes, Campylobacter jejuni, and Clostridium perfringens. The contaminated microorganisms in food samples were comprised of 10.55% B. cereus, 2.7% S. aureus, 2.0% V. parahaemolyticus, 0.8% C. perfringens, 0.2% Y. enterocolitica, and 0.1% of L. monocytogenes, respectively. Salmonella spp., C. jejuni, and E. coli O157:H7 were not detected in any of the food samples. Particularly, B. cereus that harbors the enterotoxin gene was detected in various foods and regions in Korea, therefore it should be a given special consideration not to allow the hazardous level of contamination.

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7Research Articles : Characterization of a New Antidementia β-Secretase Inhibitory Peptide from Rubus coreanus

저자 : Dae Hyoung Lee , Dae Hyung Lee , Jong Soo Lee

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 489-494 (6 pages)

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In order to develop a potent antidementia β-secretase inhibitor from phytochemicals, β-secretase inhibitory activities of extracts from many medicinal plants and herbs were determined. Water extracts from Rubus coreanus showed the highest β-secretase inhibitory activity of 84.5%. After purification of the β-secretase inhibitor from R. coreanus using systematic solvent extraction, ultrafiltration, Sephadex G-10 column chromatography, and reverse-phase high performance liquid chromatography (HPLC), a purified β-secretase inhibitor with IC50 inhibitory activity of 6.3×103 ng/mL (1.56×10?6 M) was obtained with a 0.08% solid yield. The molecular mass of the purified β-secretase inhibitor was estimated to be 576 Da by liquid chromatography-mass spectrometry (LC-MS) and β-secretase inhibitor also is a new tetrapeptide with the sequence Gly-Trp-Trp-Glu. The purified β-secretase inhibitory peptide inhibited β-secretase non-competitively and also show less inhibition on trypsin, however no inhibition on other proteases such as α-secretase, chymotrypsin, and elastase.

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8Research Articles : Effect of Fatty Acid Profiles on Sensory Properties of Beef Evaluated by Korean and Australian Consumer Groups

저자 : Soo Hyun Cho , Jae Hee Kim , Jin Hyoung Kim , Beom Young Park ,

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 495-500 (6 pages)

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This study assessed the role of fatty acids on beef preference of 2 consumer groups from South Korea and Australia. Three muscles (longissimus dorsi, triceps brachii, and semimembranosus) were obtained from 36 carcasses (18 Hanwoo steers and 18 Angus steers) and the cooked beef samples were evaluated by 1,080 consumers (720 Korean consumer panels and 360 Australian consumer panels). The cluster analysis showed that the Korean consumers had more significant relationship with fatty acid composition of beef than that of the Australian consumers when evaluated Australian Angus beef. Only C20:5(n-3), and C22:5(n-3) affected preference clustering for Australian consumers; while saturated (C16:0 and C18:0) as well as unsaturated fatty acids [C16:1(n-7), C18:2(n-6), C18:3(n-3), C20:3(n-6), C20:4(n-6), C20:5(n-3), C22:4(n-6), C22:5(n-3)] affected preference clustering for Korean consumers (p<0.05). In the discriminant analysis of Korean consumer`s preference clustering, C20:5(n-3) was a significant fatty acid for Australian Angus beef while the C20:4(n-6) and C18:0 for Korean Hanwoo beef to evaluate the palatability (p<0.05). Therefore, fatty acid compositions impact Korean consumer`s preference of beef.

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9Research Articles : Quantitative Structure-Activity Relationship (QSAR) of Antioxidative Anthocyanidins and Their Glycosides

저자 : Hyun Joo Chang , Eun Hye Choi , Hyang Sook Chun

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 501-507 (7 pages)

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The quantitative structure-activity relationships (QSAR) study of antioxidative anthocyanidins and their glycosides were evaluated using 4 different assays of Trolox equivalent antioxidant capacity (TEAC), superoxide radical (O2-), hydrogen peroxide (H2O2), and peroxynitrite radical (ONOO?) scavenging with TSAR software. Four models were developed with significant predictive values (r2 and p value), which indicated that the antioxidant activities were mainly governed by the 3-dimensional structural energy (torsional energy), constitutional properties (the number of hydroxyl and methyl groups), and electrostatic properties (heat of formation, and dipole, quadrupole, and octupole components). This QSAR approach could contribute to a better understanding of structural properties of anthocyanidins and their glycosides that are responsible for their antioxidant activities. It might also be useful in predicting the antioxidant activities of other anthocyanins.

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10Research Articles : A New Analytical Method for Erythromycin in Fish by Liquid Chromatography/Tandem Mass Spectrometry

저자 : Mi Jung Park , Mi Seon Park , Tae Seek Lee , Il Shik Shin

발행기관 : 한국식품과학회 간행물 : Food Science and Biotechnology(구 Foods and Biotechnology) 17권 3호 발행 연도 : 2008 페이지 : pp. 508-513 (6 pages)

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Erythromycin has been used to treat Streptococosis, Edwardsiellosis, Vibriosis, Bacterial enteritis in the cultured fish. In this study, a rapid and effective erythromycin analysis method with new sample treatment protocol and liquid chromatography/tandem mass spectrometry (LC/MS/MS) system for fish products was developed. For the erythromycin extraction from fish muscle, the solvent mixture composed of 0.2% meta-phosphoric acid and methanol (6:4) showed good recovery rate, and the optimum extraction solvent volume was 20 mL. Erythromycin detection using LC/MS/MS were carried out under electrospray ionization (ESI) positive condition and erythromycin mass value 576.2 and 157.9. And the detection limit of the established method was 0.005 mg/kg in fish products. The recovery rate of the developed method applied to the fish species were as following, olive flounder, 87.6±5.0%; black rockfish, 87.2±6.4%; eel, 85.2±4.8%; and rainbow trout, 86.0±6.2%. In the established method in this study, the correlation of coefficient values (R2) of erythromycin calibration curve (n=11) was 0.9998.

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