• Title/Summary/Keyword: Ginkgo nut

Search Result 18, Processing Time 0.023 seconds

Physical and Sensory Properties of Rice Gruels and Cakes Containing Different Levels of Ginkgo Nut Powder (은행 분말을 첨가한 죽 및 떡의 물리적 및 관능적 특성)

  • Kim, Jung-Mi;Suh, Dong-Soon;Kim, Young-Suk;Kim, Kwang-Ok
    • Korean Journal of Food Science and Technology
    • /
    • v.36 no.3
    • /
    • pp.410-415
    • /
    • 2004
  • Effects of ginkgo nut powder content on physical and sensory properties, and consumer acceptability of ginkgo nut gruel and cake were examined. In ginkgo nut gruel, greenness and consistency decreased, and sensory color intensity and ginkgo nut flavor increased with increasing ginkgo nut powder content. Consumer acceptability test indicated ginkgo nut powder : rice flour ratio at 4 : 6 had the highest overall and flavor acceptabilities. In ginkgo nut rice cakes, as ginkgo nut powder content increased, greenness, adhesiveness, sensory hardness, and cohesiveness of mass decreased, while sensory color intensity, ginkgo nut flavor, and chalkiness increased. Ginkgo nut cake with ginkgo nut powder : rice flour ratio at 16 : 84 had highest overall acceptability.

Antioxidant Activity and Quality Characteristics of Mung Bean Starch Gel Prepared with Ginkgo Nut Powder (은행 분말을 첨가한 청포묵의 항산화활성 및 품질특성)

  • Joo, Shin-Youn;Choi, Hae-Yeon
    • Journal of the Korean Society of Food Culture
    • /
    • v.29 no.1
    • /
    • pp.84-90
    • /
    • 2014
  • This study investigated the effects of ginkgo nut powder on the antioxidant activity and quality characteristics of mung bean starch gel. Mung bean starch gels were prepared with different amounts of ginkgo nut powder (0, 1, 3, 5, and 7%). The antioxidant activity of ginkgo nut powder and mung bean starch gel was estimated through measuring DPPH free radical scavenging activity and total phenolic acid content. For analyzing quality characteristics several factors were considered: syneresis, pH, color, texture profile analysis, and sensory evaluations. In the results, syneresis in the treated group was higher than the control group. The pH, b values, total phenolic acid content, and DPPH free radical scavenging activity of mung bean starch gels also significantly increased with increasing ginkgo nut powder. In contrast, the L values and a values of mung bean starch gels significantly decreased with increasing ginkgo nut powder. In the texture profile analysis, the mung bean starch gels with 5% and 7% ginkgo nut powder showed significantly lower degrees of hardness, chewiness, and gumminess. On the other hand, cohesiveness was highest in the mung bean starch gels with 5% and 7% ginkgo nut powder. The consumer acceptability score for the mung bean starch gel prepared with 5% and 7% ginkgo nut powder ranked significantly higher than the other groups in flavor and taste. Overall, these results suggest that ginkgo nut powder is a good ingredient for increasing the consumer acceptability and functionality of mung bean starch gel.

Studies on the Content of Triacylglycerol Species, Tocopherols, and Phytosterols from the Selected Nuts (견과류의 지방산, 트리아실글리세롤, 토코페롤 및 파이토스테롤의 조성 연구)

  • Sung, Min-Hye;Lyu, Hyun-Kyeong;Lee, Sun-Mo;Lee, Ki-Teak
    • Food Science and Preservation
    • /
    • v.17 no.3
    • /
    • pp.376-383
    • /
    • 2010
  • Including crude fat content, triacylglycerol species, tocopherols and phytosterols were analyzed in 8 kinds of nuts (sunflower seed, cashew nut, walnut, pistachio, pumpkin seed, ginkgo, hazel nut and pecan). The extracted crude fats showed 0.63~39.60 wt%, among which hazel nut showed the highest amount of fat content. Oleic acid (C18:1) was major fatty acids at sn-2 position in cashew nut, pistachio, hazel nut, and pecan while sunflower seed, walnut, and pumpkin seed showed linoleic acid (C18:2) as a major fatty acids at sn-2 position. Especially, ginkgo contained 10.72 wt% of vaccenic acid (C18:1-n7) at sn-2 position. The TAG species of 8 kinds of nuts were analyzed by reverse-phase HPLC, from which PN value ranged 40~52. Among the analyzed nuts, higher content of tocopherols were observed in ginkgo (48.57 mg/100 g), sunflower seed (38.35 mg/100 g), and pumpkin seed(31.43 mg/100 g). Total phytosterols were observed with the range of 88.60~947.20 mg/100 g.

Effects of Convection Oven Dehydration Conditions on the Physicochemical and Sensory Properties of Ginkgo Nut Powder (열풍건조 조건에 따른 은행분말의 이화학적 및 관능적 특성)

  • Kim, Jung-Mi;Lee, Young-Chun;Kim, Kwang-Ok
    • Korean Journal of Food Science and Technology
    • /
    • v.35 no.3
    • /
    • pp.393-398
    • /
    • 2003
  • Effects of convection oven dehydration conditions on the physicochemical and sensory properties of ginkgo nut powder were examined using three types of pre-treatment on ginkgo nuts: coarse grinding of ginkgo nut (GR); coarse grinding followed by 1 min blanching (GB); 3 min blanching followed by coarse grinding (BG). Pretreated ginkgo nuts were dried in convection oven at 70 and $80^{\circ}C$ to the moisture content of approximately 5%. Rehydration rate, swelling power, solubility, lightness, and greenness of GB ginkgo nut powder dried at $70^{\circ}C$ were the most similar to those of freeze dried one. GR and GB samples dried at $70^{\circ}C$ had higher sensory values of green color and ginkgo nut flavor. Ginkgo nut powder with desirable quality attributes could be produced by drying GB in convection oven at $70^{\circ}C$ for 10 hr.

Physical and Sensory Properties of Peeled Ginkgo Nuts Prepared under the Different Dehydration Conditions (내피제거 은행의 물리적 및 관능적 품질 특성)

  • Han, Jae-Young;Lee, Young-Chun;Kim, Kwang-Ok
    • Korean Journal of Food Science and Technology
    • /
    • v.35 no.1
    • /
    • pp.84-91
    • /
    • 2003
  • The effects of different dehydration conditions for the removal of ginkgo nut inner coat on peeled ginkgo nuts were examined using physical and sensory methods. Dehydration of ginkgo nuts at $90^{\circ}C$ for 120 min resulted in greater hardness, lightness (L), redness (a), yellowness (b), and firmness. Higher roasted flavor and larger holes were observed with dehydration at $150^{\circ}C$ for 30 min and greater cooked ginkgo flavor and green color with dehydration at $120^{\circ}C$ for 50 min. Based on these findings, dehydration at $120^{\circ}C$ for 50 min was determined as the adequate hot air dehydration condition for the removal of ginkgo nut inner coat. Ginkgo nuts stored at $25^{\circ}C$ maintained overall desirability up to 4 weeks. In ginkgo nuts stored at $4^{\circ}C$, all sensory desirabilities evaluated were reasonably high until 60 days of storage; desirability of appearance decreased moderately at 80 days of storage, and appearance became very undesirable at 180 days. Ginkgo nuts stored at $-18^{\circ}C$ showed little changes until 10 months of storage, but slight decreases in overall desirability, flavor, and texture were noted at 12 months.

Studies on the Lipid Components of Ginkgo Nut (은행종실(銀杏種實)의 지질성분(脂質成分)에 관한 연구(硏究))

  • Chung, Ann-Suk;Shin, Hyo-Sun
    • Korean Journal of Food Science and Technology
    • /
    • v.10 no.2
    • /
    • pp.119-123
    • /
    • 1978
  • Lipids, extracted with chloroform-methanol (2:1 by vol.) and purified, from nut and leaf of Ginkgo biloba were identified and quantitatived by column, thin layer and gas liquid chromatography. The results were summarized as follow: 1) The total content of purified lipids in the nut and leaf on the fresh weight basis were 1.32% and 2.24%, respectively. 2) The lipid fractions in the nut obtained by silicic acid colum chromatography were found to be composed of about 89% neutral lipids and about 10% compound lipids, and in the leaf were found to be composed of about 28% neutral lipids and about 72% compound lipids. 3) Among the neutral lipid fractions, triglycerides (86.2%) were the major component in the nut, but esterified sterols (53.3%) were the major component in the leaf. 4) The main fatty acids of the total lipids were oleic(37.5%) and linoleic acid(44.5%) in the nut, but linolenic(45.2%) and palmitic acid (25.1%) were main fatty acids in the leaf. The patterns of fatty acid composition of the neutral lipid fractions in the nut and leaf were found to be similar, and oleic, linoleic and palmitic acid were the predominant. A large amount of oleic and linoleic acid in the glycolipid fractions was found in the nut compared with those in the leaf, but linolenic acid content in the leaf was significantly higher than in the nut. And patterns of fatty acid composition of the phospholipid fractions in the nut and leaf were found to be similar to that of glycolipid fractions.

  • PDF

A Study on Horticulture Foods in Kory$\v{o}$ Era (고려시대의 원예식품류에 관한 연구)

  • 강춘기
    • The Korean Journal of Food And Nutrition
    • /
    • v.3 no.1
    • /
    • pp.69-79
    • /
    • 1990
  • Koryo(918-1352) made a certain progress in her culture and agriculture except the latter part of the era when the development in social economy were retarded due to military dictatorship and Mongol invasion. Despite of these external conditions, cultivations and kinds of horticulture foods were expanded With the help Of many king's agriculture first policy and the advancement in cultivating method . Among the horticulture foods, fruits such as peach, plum, Japanese apricot, apricot, cherry, pear, persimmon, pomegranate, crab apple, Jujube, grape, Chinese quince, walnut, orange, yuzu, chestnut, ginkgo nut(silvernut), pine nut, nutmeg nut, and fiat were crowed, and vegetables such as Chinese cabbage, turnip, radish, garlic, welsh onion, gynmigit, scallion, taro, malva, cucumber, white gourd, bottle gourd, water melon, eggplant, Japanese ginger, ginger and litchi were cultivated, while semi, water shieled and bamboo sprouts were taken in natural. Fruits were taken in natural or through dry, and particularly grapes were used to make wine, Flowers of Japanese apricots, some fruit trees, and chrysanthemum were also made into wine. Certain fruits were used as medicine owing to its medicinal nature. Vegetables were used to make Kimchi or to boil soup, sometimes they were dried to be kept in storage to be used in rare season and also used as medicine Increase in kinds of horticulture foods does not have any direct relation with the reform of social economy, but the fact that so many kinds of horticulture foods were cultivated and used in Koryo era shows that they elevated people's life and dietary culture.

  • PDF

Fetal safety of medicinal herbs and food ingredients during pregnancy: Recommendations from traditional Korean medicine based on expert opinions

  • Hyeong Joon Jun;Dong Il Kim;Jeong-Eun Yoo;Seung-Jeong Yang;Deok-Sang Hwang;Hyeong Jun Kim;Yoon Jae Lee;Dong Chul Kim;Sanghun Lee
    • The Journal of Korean Medicine
    • /
    • v.44 no.4
    • /
    • pp.121-135
    • /
    • 2023
  • Objectives: This study aimed to establish and provide reliable information for general public, based on expert consensus, on the risks of misuse of medicinal herbs for food and pure food ingredients for the fetus during pregnancy. Methods: A panelist of seven traditional Korean medicine (TKM) gynecologists responded to a questionnaire summarizing the fetal safety literature for twenty-five medicinal herbs for food and pure food ingredients derived from medicated diet (藥膳, Yaksun) recipes during three online Delphi rounds anonymously. Results: Ginkgonis Semen (Ginkgo nut), Illici Veri Fructus (Star anise), lavender, bitter gourd, and parsley were agreed at the level 1 of "Do not consume". These five ingredients were recognized as having significant risks both in the literature evidence and in expert opinion. Rosemary, Citri Unshius Pericarpium, Discoreae Rhizoma, lemongrass, Schisandrae Fructus, Cassiae Semen, Foeniculi Fructus, Mori Fructus, Cinnamomi Cortex, and Astragali Radix were agreed at the level 2 of "consultation with TKM practitioner is required". Conclusion: Based on the consensus of a seven-member expert panel of TKM gynecologists, consumption of Ginkgonis Semen (Ginkgo nut), Illici Veri Fructus (Star anise), lavender, bitter gourd, and parsley should be avoided by pregnant women. For Rosemary, Citri Unshius Pericarpium, Discoreae Rhizoma, lemongrass, Schisandrae Fructus, Cassiae Semen, Foeniculi Fructus, Mori Fructus, Cinnamomi Cortex, and Astragali Radix, the level 2 advisory may be recommended to use with caution and to consult a TKM practitioner for advice on consumption, dose, and duration.

The Stereospecific Analysis of the Triacylglycerols of Ginkgo Nut Oils by High-Performace Liquid Chromatography(HPLC) in the Silver Ion and Reversed Phase Modes (銀Ion 및 역상(逆相) HPLC를 이용(利用)한 입체이성체적(立體異性體的) 분석(分析)에 의한 은행종실유(銀杏種實油)의 트리글리세리드의 분자종(分子種)에 관한 연구(硏究))

  • Joh, Yong-Goe;Woo, Hyo-Kyeng;Kim, Hoon-Sook
    • Journal of the Korean Applied Science and Technology
    • /
    • v.14 no.1
    • /
    • pp.61-76
    • /
    • 1997
  • Triacylglycerols of the seeds of Ginkgo biloba have been resolved by high-performace liquid chromatography(HPLC} in the silver-ion and reverse-phase modes. The fatty acids were identified by a combination of capillary gas chromatography and gas-chromatography /mass spectrometry as the methyl and /or picolinyl ester. The main components are $C_{18:2{\omega}6}$(39.0mol%), $C_{18:1{\omega}7}$(asclepic acid 21.5mol%), and $C_{18:1{\omega}9}$(oleic acid, 13.8mol%). Considerable amounts of unusual acid such as $C_{20:3{\Delta}^{5,11,14}$ (5.7mol%), $C_{18:2{\Delta}^{5,9}$(2.8mol%), and $C_{18:3}{\Delta}^{5,9,12}$(1.6mol%), were checked. In addition, an anteiso-branched fatty acid, 14-methylhexadecanoic acid, was also present as a minor component(0.9 mol%). The triacylglycerols were separated into 17 fractions by reverse-phase HPLC, and the fractionation was achieved according to the partition numnber(PN) in which a ${\Delta}^5$-non methylene interrupted double bond($^5$-NMDB) showed different behaviour from a methylene interrupted double bond in a molecule with a given cahinlength. Silver-ion HPLC exhibited excellent resolution in which fractions(23 fractions) were resolved on the basis of the number and configuration of double bonds. In this instance, the strength of interaction of a ${\Delta}^5$-NMDB system with silver ions seemed to be weaker than a methylene interrupted double bond system. The principal triacylglycerol species are as follows ; $(C_{18:2{\omega}6)2}/C_{18:1{\omega}7}$, $C_{18:1{\omega}9}/C_{18:1{\omega}7}/C_{18:2{\omega}6}$, $(C_{18:1{\omega}7)2}/C_{18:2{\omega}6}$, $C_{16:1{\omega}7}/C_{18:1{\omega}9}/C_{20:3}{\Delta}^{5,11,14}$, $C_{16:1{\omega}7}/C_{18:1{\omega}7}/C_{20:3}{\Delta}^{5,11,14}$, $C_{18:1{\omega}9}/C_{18:1{\omega}7}/C_{18:2{\omega}6}$, $C_{18:1{\omega}9}/C_{18:2}{\Delta}^{5,5}/C_{20:3}{\Delta}^{5,11,14}$, $(C_{18:1{\omega}7)2}/C_{18:2{\omega}6}$ and $(C_{18:1{\omega}9)2}/C_{18:2{\omega}6}$, while simple triacylglycerols without $C_{18:2{\omega}6})_3$ were not present. Stereospecific analysis showed that fatty acids with ${\Delta}^5$-NMDB system and saturated chains were predominantly located at the site of sn-3 carbon of glycerol backbones. It is evident that there is asymmetry in the distribution of fatty acids in the TG molecules of Ginkgo nut oils.

Antioxidative Effectiveness of Extract of Nut and Leaf of Ginkgo biloba L. (은행(Ginkgo biloba L.) 종실 및 잎 추출물의 항산화 효과에 관하여)

  • Bae, Jae Oh;Lee, Gee Dong;Kim, Jeong Sook;Yoon, Hyung Sik
    • Current Research on Agriculture and Life Sciences
    • /
    • v.9
    • /
    • pp.61-69
    • /
    • 1991
  • Free phenolic acid, esterified and insoluble phenolic acid extract were extracted from Ginkgo nuts and leaves. Antioxidative effectiveness was measured by Peroxide value and TBA value at each extract, control, 0.02%(w/w) BHA and BHT in corn oil, at $45{\pm}1^{\circ}C$ and dark thermo static oven for 45 days. Laboratory tube was added by BHA, BHT, separated free phenolic acids, esterified and insoluble-bound phenolic acid extract of Ginkgo nuts and leaves 127, 95, 140, 121, 280 meq/kg, oil. On the other hand, at the same condition TBA values of each antioxidative matter were 0.430, 0.153, 0.059, 0.175, 0.260, 0.187, 0.160, 0.174, 0.195. This result remarkably appeared antioxidative effectiveness in corn oil substrate, ${\rho}$-Hydroxybenzoic acid, Syringic acid, Gallic acid, Protocatechuic acid, Pyrogallol, Caffeic acid, Coumaric acid, trans-Cinnamic acid, Phloroglucinol.

  • PDF