• 제목/요약/키워드: Fruit by-products

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진공동결건조기를 이용하여 반건조 오디를 제조하는 방법 (A making the method of semi-dried mulberry fruit by vacuum freezing dryer)

  • 김현복;김성국;석영식;서상덕
    • 한국잠사곤충학회지
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    • 제53권1호
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    • pp.50-54
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    • 2015
  • 가공 중 파괴되기 쉬운 여러 가지 기능성 성분과 오디 고유의 맛, 향 및 형태를 그대로 유지한 말랑말랑한 반건조 오디를 제조함으로써 오디 자체를 식용 또는 식품(빵, 떡, 한과 등) 재료로서의 이용성, 실온 보관 및 유통 편리성을 향상시키고자 하였다. 영하 $40^{\circ}C$ 이하에서 보관한 오디를 내부 온도를 $30{\sim}35^{\circ}C$ 사이로 맞춰 놓은 동결건조기에 넣고 23 ~ 24시간 동안 진공상태에서 건조시킴으로써 오디는 열매끼리 뭉치지 않고 한 알씩 분리되며, 만졌을 때 손에 검은 색이 묻어나지 않는다. 특히 안토시아닌 색소인 C3G을 비롯해 루틴(rutin), 가바(GABA), 레스베라트롤(resveratrol) 등의 다양한 기능성 성분과 오디 고유의 맛, 향, 형태를 그대로 유지할 수 있다. 반건조 오디의 경우 수확 후 냉동보관에 필요한 시설유지비(전기료 등)가 들지 않으며, 건조 후 1년 정도 실온 보관이 가능하므로 수송유통이 편리함은 물론 연중 상시 구매가 가능하다. 또한 반건조 오디 생산에 걸리는 시간은 약 23 ~ 24시간으로 완전 건조 오디 생산 시 걸리는 시간(48시간)보다 절반가량 짧아 농가의 가공비용을 줄일 수 있다. 단순 가공제품과 더불어 반건조 오디를 직접 식용 또는 다양한 식재료에 활용함으로써 다양한 오디의 영양성분과 기능성 성분의 섭취를 통해 국민건강증진은 물론 소비확산을 통한 농가소득 향상에도 기여할 수 있을 것으로 기대한다.

MODIFICATION OF OIL PALM EMPTY FRUIT BUNCH FIBER BY GRAFT COPOLYMERIZATION

  • Wan Yunus Wan Md Zin;Ibrahim NorAzowa;Rahman Mohd Zaki Ab.;Ahmad Mansor B.;M. Dahlan Khairul Zaman
    • 한국고분자학회:학술대회논문집
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    • 한국고분자학회 2006년도 IUPAC International Symposium on Advanced Polymers for Emerging Technologies
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    • pp.358-358
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    • 2006
  • The graft copolymerization of methyl methacrylate (MMA), butyl acrylate (BA) and acrylamide (AAm) onto oil palm empty fruit bunch (OPEFB) fiber were successfully carried out in aqueous solution using $H_{2}O_{2}/Fe^{2+}$ as initiator. For all monomers the percentage of grafting increases with the amount of monomer and can be controlled by setting the appropriate reaction conditions. The optimum reaction period were found to be 120 minutes for all monomers whereas the optimum temperature and the amount of initiator needed for grafting depend on the type of the monomer used. The mechanisms of grafting vinyl monomer onto OPEFB were proposed. The grafted products were characterized by gravimetric analysis, FTIR and SEM.

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Isolation of a Pestalotiopsis Species Degrading Mucilage from Fruit of Opuntia ficus-indica var. Saboten

  • Huh, Yoon-Hee;Ko, Young-Hwan
    • Journal of Applied Biological Chemistry
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    • 제50권4호
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    • pp.221-226
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    • 2007
  • The high molecular-weight mucilage extracted and purified from cactus fruit of Opuntia ficus-indica var. Saboten was degraded by the cell-free culture filtrate of a fungus isolated from soil. TLC analysis of the polymeric mucilage after incubation with the fungal culture filtrate confirmed its degradation. When the degradation products were tested for their qualitative reactions with ninhydrin and phenol-sulfuric acid, only phenol-sulfuric acid gave positive development, and ninhydrin did not show any observable color reaction. This coloring reaction suggested the presence of a carbohydrate without an amino group within the mucilage. Analyses by HPLC and liquid gel permeation chromatography on sephadex G-100 also provided additional information on degradation of the mucilage by the fungal culture filtrate. The sequences of ITS-5.8S rDNA from the fungal isolate that was cultivated for the preparation of mucilage-degrading enzyme showed 99% similarity to those of Pestalotiopsis aquatica.

Anti-hepatotoxic activity of Fruit pulp of Momordica dioica Roxb. (Cucurbitaceae)

  • Ilango, K.;Maharajan, G.;Narasimhan, S.
    • Advances in Traditional Medicine
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    • 제4권1호
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    • pp.44-48
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    • 2004
  • The Hexane Extract (HE) and Ethyl Acetate Soluble Fraction of the Methanolic Extract (EASFME) of the fruit pulp of Momordica dioica Roxb. (Cucurbitaceae) was evaluated for its anti-hepatotoxic activity in rats. Acute hepatotoxicity was induced by administering paracetamol (2 g/kg, p.o.) for 3 days. The extracts, at a dose of 400 mg/kg (p.o.) administered for 7 days exhibited a significant therapeutic effect by lowering Serum Glutamate Oxaloacetate Transaminase (SGOT), Serum Glutamate Pyruvate Transaminase (SGPT), Serum Alkaline Phosphatase (ALP) and Serum bilirubin and increasing the serum protein levels. These biochemical observations were supplemented by histopathological examination of the liver sections. The activity of extract was also comparable to the standard drug Silymarin, which is a well-known natural anti-hepatotoxic drug.

과즙 첨가에 의한 골뱅이 내장젓갈의 제조 및 특성 (Preparation and Characteristics of Whelk Internal Organ Jeotgal with the Addition of Fruit Juice)

  • 오정훈;이경은;김정목;이승철
    • 한국식품영양과학회지
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    • 제30권4호
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    • pp.641-645
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    • 2001
  • 골뱅이의 가공 부산물인 내장의 효율적인 이용을 위하여 단백질 가수분해효소인 bromelain을 함유하는 파인애플과 actinidin을 함유하는 참다래의 과즙 첨가하여 젓가을 제조하였다. 파인애플 과즙과 참다래 과즙은 각각 52unit/mL, 248 unit/mL의 단백질 가수분해 효소활성을 나타내었다. 마쇄한 골뱅이의 내장을 염농도 12.5%와 과즙 25, 50, 100 mL 첨가하여 1$0^{\circ}C$에서 숙성하였다. 파인애플 과즙을 첨가한 젓갈에서 참다래를 첨가한 경우보다 숙성 중 pH의 변화가 다소 많으며 아미노 질소가 많이 생성되었고 총질소함량과 총균수는 숙성기간이 연장도리수록 증가하는 경향을 보이고 있으나, 첨가한 과즙의 종류와 양에 따른 연관성은 발견하지 못하였다. 한편, 젓갈의 숙성 중의 안전성을 확인하기 위하여 측정한 대장균군 시험에서는 본 연구에서 제조된 모든 젓갈에서 음성으로 확인되어 위생적으로 적합한 것으로 판정되었다.

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비타민나무 추출물 및 착즙 분말의 항산화 활성 및 Nitric Oxide 생성과 Elastase에 대한 저해활성 (Antioxidative and Inhibitory Activities of Extract and Juice Powder from Hippophae rhamnoides L. against Nitric Oxide and Elastase Production)

  • 박주희;이찬옥;유지혜;;유남호;김명조
    • 한국약용작물학회지
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    • 제26권2호
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    • pp.119-126
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    • 2018
  • Background: The flowering plant Hippophae rhamnoides L. has been used for many studies on fruit or leaf extracts. This study was conducted to investigate the development of a new cosmetic material from H. rhamnoides fruits and leaves that have by antioxidant, anti-inflammatory and wrinkle improvement activities. Methods and Results: The antioxidant abilities of H. rhamnoides extracts, including of a water-soluble fruit powder (FW), a fatsoluble fruit powder (FF), a supercritical extract of fruit by-product (BS), and a mixture of leaf and fruit (MIX), were investigated in vitro. A DPPH radical assay for antioxidant activity was performed for these fractions alongside assay to evaluate the total phenolic and flavonoid content (TPC and TFC). As expected, the MIX had the highest DPPH radical scavenging activity ($RC_{50}=10.27{\mu}g/m{\ell}$), and the TPC and TFC also were highest in MIX ($225.7mg{\cdot}GAE/g$, and $25.18mg{\cdot}QE/g$, respectively). Nitric oxide (NO) production in LPS-induced RAW264.7 cells was estimated and the results indicated an over 75% decrease of NO production in FF and MIX. In other assays, the highest elastase inhibitory activity was found in FW. Conclusions: These results revealed that H. rhamnoides extracts have a high potential for antioxidant, anti-inflammatory and antiwrinkle activities. H. rhamnoides products are suggested to be applied as the functional materials of cosmetic ingredients.

치자의 항산화 활성성분에 관한 연구 (Antioxidant Components of Gardenia Fruit)

  • 한용남;오희경;황금희;이미순
    • 생약학회지
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    • 제25권3호
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    • pp.226-232
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    • 1994
  • An antioxidant activity of Gardenia Fruit (Gardenia jasminoides Ellis) which has been used for food coloring was studied. The antioxidant activity was determined by measuring lipid peroxide produced when a mouse liver homogenate was exposed to the air at $37^{\circ}C$, using 2-thiobarbituric acid (TBA). Both water and methanol extracts of Gardenia Fruit showed the antioxidant activity. On solvent fractionation, the antioxidant activity was removed into the ethyl acetate and butanol soluble fractions. And the final water soluble fraction also showed the antioxidant activity in the low concentration, but it promoted the lipid peroxidation in the high concentration. Two compounds (I and II) having the antioxidant activity were isolated from the butanol fraction, and compound I also occurred in the ethyl acetate fraction. The antioxidant activity of compound II was more potent than that of I. By analyzing data for UV, IR and $^1H-NMR$, compounds I and II were identified as geniposide and crocin, respectively.

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Information obtainable from transmission measurements of carbohydrates in the range from 200 to 1700 nm using water, heavy water ($D_20$) or dimethylsulfoxide (DMSO) as solvents

  • Bernhard Tauscher;Robert B.Jordan;Peter Butz;Carola Merkel
    • 한국근적외분광분석학회:학술대회논문집
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    • 한국근적외분광분석학회 2001년도 NIR-2001
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    • pp.1518-1518
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    • 2001
  • In the area of the destruction-free NIR analysis of fruit and vegetables development has not yet progressed as far as in grain and similar products. One reason for that is, that in contrast to grains, in fruit and vegetables water appears as the outstanding main-component making up typically 80% by weight of the fruit. Of the M absorption spectrum of pure water the bands at 1450, 970 and 760 nm are the first, second and third overtones respectively of O-H stretch while those at 1940 and 1190 are combination bands involving O-H stretch and O-H bend. The choice of band for spectrometry is governed by considerations of sensitivity and selectivity. The overtone bands are satisfactory for use in moisture measurements from 0 to 4 % depending on path length. Measurements in fruits and vegetables at wavelength areas that are also important for the determination of carbohydrates (sucrose, glucose, fructose) often lead to total absorption in the presence of significant water even if short path lengths are possible. In this work model systems are used containing different carbohydrates in solvents like heavy water (D$_2$O) or dimethylsulfoxide (DMSO) that do not contain O-H functional groups.

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Mulberry popcorn disease occurrence in Korea region and development of integrative control method

  • Ju, Wan-Taek;Kim, Hyun-Bok;Sung, Gyoo-Byung;Park, Kwang-Young;Kim, Yong-Soon
    • International Journal of Industrial Entomology and Biomaterials
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    • 제33권1호
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    • pp.36-40
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    • 2016
  • Mulberry fruits also have tremendous potential for providing various valuable industrial products of very high economic value for human beings. Nevertheless, through global warming, the popcorn disease caused by sclerotia forming fungi reduces the productivity of mulberry fruits in worldwide. So, in this study, we investigated damage ratio of mulberry popcorn disease in mulberry fruit production farm (Buan, Jeongueb, Sangju, Gochang in Korea). In Jeonbuk Buan, popcorn disease rate was the highest about 30%, on the other hand, in case of Gyungbuk Sangju and Jeonbuk Gochang, not damage. Also, we investigated about popcorn disease prevention by various of chemical treatment methods.

식품섭취에 따른 유방암의 발생 위험 : 환자- 대조군 연구 (Food Intake and Breast Cncer Risk: A Case-Control Study)

  • 도민희;이상선;정파종;이민혁
    • Journal of Nutrition and Health
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    • 제34권2호
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    • pp.165-175
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    • 2001
  • We performed case-control study to evaluate relationship between food intake and risk of breast cancer. We interviewed breast cancer cases(n=108) who were newly histologically identified and selected from Hanyang and Soonchunhyang University Hospital in Seoul. We used hospital-based control subjects(n=121), who were selected from the patients in the department of plastic surgery, general surgery and opthalmology of the same hospital by frequency matching. Matching variables were age($\pm$4 age) and menopausal status. We collected information on general characteristics of subjects, history of disease, family history of breast cancer, vitamin supplementation, alcohol intake, and food intake through individual interview. Dietary information was ascertained via a food frequency questionnaire method(total item=98). All analyses was conducted according to menopausal status. Especially, pepper and grape intake in premenopausal women, showed protective effect in breast cancer. Otherwise consumption of meat, pork, and fish was not associated with breast cancer risk in this study. At milk and dairy products, milk intake was associated with lower risk of breast cancer in postmenopausal women and overall intake of soy products was associated with breast cancer risk, but not significant. These findings suggested that consumption of some fruit and vegetable intake was a protective factor on breast cancer and further study with more number of subjects should be need to evaluate the breast cancer risk. (Korean J Nutrition 34(2): 165~175, 2001)

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