• 한국잠사곤충학회지
• /
• 제53권2호
• /
• pp.101-109
• /
• 2015

본 연구는 장기 냉동저장 오디에 대해 현재 사용하고 있는 방법이 보관 및 유통비용 등이 커 농가에 부담이 되므로, 이에 고가 건조기를 대체할 수 있는 값이 저렴한 상용화된 다목적농산물건조기를 통한 건조기 개량 및 반건조기술을 개발하였다. 연료와 히터의 건조온도를 $60^{\circ}C$로 설정하고, 상온통풍은 상온보다 온도를 낮추어 건조시험 한 결과 연료 3시간, 히터 1시간, 상온통풍 51시간인 조건에서 다른 조건과 비교해서 연료소모 및 전기사용량 면에서 가장 양호하였고, 품질에 있어서도 다른 조건에 비해 현저히 끈기가 있는 반 건조 특성을 나타내었으며, 완료된 건조시료의 상태도 상품성이 뚜렷한 암갈색을 나타냈다. 경도(압축력)은 건조 전보다 건조 후에, 항온보다는 변온에서 높게 나타났다.

• 한국자원식물학회:학술대회논문집
• /
• 한국자원식물학회 2019년도 춘계학술대회
• /
• pp.55-55
• /
• 2019

Strawberry which is the genus Fragaria under family Rosaceae is one of the most important fruit plants for both fresh consumption and food processing in the temperate and subtropical countries. Propagation of strawberry is achieved either through runners or by in vitro micropropagation. Meristem tips, generally obtained from runners of virus-free plants, are commonly used to establish in vitro cultures, which are employed for mass propagation or as a source of plant material for regeneration and transformation experiments. This study was conducted to determine the optimal natural additives strength to improve sprouting shoot rate of apical meristem of strawberry 'Seolhyang'. Strawberry apical meristem at size (0.2 mm to 0.3 mm) with leaf primordials were cultured on the 1/3MS(Murashige & Skoog) medium supplemented with five natural additives such as coconut milk, maple sap, banana powder and peptone. The sprouting ratio and growth characteristics were evaluated after eight weeks after in vitro culture. Shoot ratio of 'Seolhyang' apical meristem was 72.9% in 1/3MS medium supplemented with maple sap. On the other hand, the low shoot ratio was observed 47.7% in 1/3MS medium supplemented with banana powder. Shoot length was different as natural additives but numbers of leaf was not significantiy different among the natural additives. As a result, the sprouting ratio and plant growth were enhanced effectively in 1/3MS medium with maple sap compared to the others.

• 식품과학과 산업
• /
• 제53권3호
• /
• pp.284-294
• /
• 2020

고전압 펄스 전기장 기술은 전기 에너지를 활용한 친환경적 비가열 공정 기술로서 꾸준히 업계의 관심을 받고 있다. 장치에 대한 이해의 부족과 장비가격에 대한 부담으로 실제 상업적 적용이 크게 증가하지 않고 있으나 가열 공정을 대체할 수 있는 기술로서의 가능성은 지속적으로 제기되고 있다. PEF 공정을 이용한 식품의 살균은 지금까지는 대부분 과일 및 야채 주스 등 저점도의 액체 식품의 살균에 대해 적용되어 왔으나 최근에는 고점도의 스무디, 고농도 단백질 음료, 혼합 주스, 알코올 음료 등으로 적용 범위가 확대되었으며, 분말, 생육 등 고체 식품의 살균에 대한 연구도 진행되고 있다. 살균 이외에도 색소, 유용성분의 추출 및 회수, 생리활성물질의 활성화, 건조의 전처리 등의 식품 공정뿐만 아니라 씨앗의 발아율 증가, 육제품의 육질 변화, 전분의 물성 변화 등에 대한 적용이 연구되면서 기존의 식품 공정을 보완 또는 대체할 수 있는 기술로서 기대되고 있다.

• 한국근적외분광분석학회:학술대회논문집
• /
• 한국근적외분광분석학회 2001년도 NIR-2001
• /
• pp.1267-1267
• /
• 2001

The existing fruit sorter has the method of tilting tray and extracting fruits by the action of solenoid or springs. In peaches, the most sort processing is supported by man because the sorter make fatal damage to peaches. In order to sustain commodity and quality of peach non-destructive, non-contact and real time based sorter was needed. This study was performed to develop peach sorter using near-infrared spectroscopy in real time and nondestructively. The prototype was developed to decrease internal and external damage of peach caused by the sorter, which had a way of extracting tray with it. To decrease positioning error of measuring sugar contents in peaches, fiber optic with two direction diverged was developed and attached to the prototype. The program for sorting and operating the prototype was developed using visual basic 6.0 language to measure several quality index such as chlorophyll, some defect, sugar contents. The all sorting result was saved to return farmers for being index of good quality production. Using the prototype, program and MLR(multiple linear regression) model, it was possible to estimate sugar content of peaches with the determination coefficient of 0.71 and SEC of 0.42bx using 16 wavelengths. The developed MLR model had determination coefficient of 0.69, and SEP of 0.49bx, it was better result than single point measurement of 1999's. The peach sweetness grading system based on NIR reflectance method, which consists of photodiode-array sensor, quartz-halogen lamp and fiber optic diverged two bundles for transmitting the light and detecting the reflected light, was developed and evaluated. It was possible to predict the soluble solid contents of peaches in real time and nondestructively using the system which had the accuracy of 91 percentage and the capacity of 7,200 peaches per an hour for grading 2 classes by sugar contents. Draining is one of important factors for production peaches having good qualities. The reason why one farm's product belows others could be estimated for bad draining, over-much nitrogen fertilizer, soil characteristics, etc. After this, the report saved by the peach grading system will have to be good materials to farmers for production high quality peaches. They could share the result or compare with others and diagnose their cultural practice.

• Mass Spectrometry Letters
• /
• 제14권2호
• /
• pp.42-47
• /
• 2023

Carthamus tinctorius L. (known as safflower) is a valuable oil plant whose importance is increasing rapidly in the world due to its high adaptation to arid regions. The seeds of this unique plant are especially used in edible oil, soap, paint, varnish and lacquer production. Its flowers are used in vegetable dye production and medicinal purposes beside its features as a coloring and flavoring in food. After the oil is removed, the remaining pulp and plant parts are used as animal feed, and dry straw residues are used as fuel. Beside all these features, its usage as a herbal medicinal plants for various diseases has gained importance on recent years. In this study, it was designed a plant metabolomic approach which transfers all the recent data processing strategies of untargeted metabolomics in clinical applications to the present study. Q-TOF LC/MS-based analysis of the extracts (70% ethanol, hexane, and chloroform) for both seed and flowers was performed using a C18 column (Agilent Zorbax 1.8 µM, 100 × 2.1 mm). Differences were observed in seed and fruit extracts and these differences were visualized using principal component analysis (PCA) plots. The total number and intersections of the peaks in the extracts were visualized using peak count comparison graph. Based on the experimental results, the number of the detected peaks for seeds was higher than the ones for the flowers for all solvent systems to extract the samples.

• 한국식품영양학회지
• /
• 제37권2호
• /
• pp.67-79
• /
• 2024

Yuzu (Citrus junos) undergoes traditional processing to create preserved yuzu with a sugar content of 50%. This study aimed to produce low-sugar yuzu syrup using artificial or natural sweeteners instead of sugar. Among artificial sweeteners, maltitol showed minimal browning and lack of deposition at high temperatures. The addition of xanthan gum (0.2%) and carboxymethyl cellulose (0.2%) resolved the issue of layer separation and viscosity decrease of yuzu syrup. Alternatively, grain syrup, a natural sweetener, improved viscosity and homogeneity without the additives. Yuzu syrups were developed using yuzu juice and preserved yuzu, with maltitol (20~40%) or grain syrup (50~70%) as the sweetener. Yuzu syrups containing 35% maltitol (M35) or 55% grain syrup (G55) had less than 5% and 10% free sugar, respectively. These syrups exhibited taste patterns similar to commercial yuzu syrup in analysis using an electronic tongue. Furthermore, M35 and G55 contained yuzu flavonoids at concentrations of 19.82 mg/g and 24.09 mg/g, respectively. Antioxidant activity (DPPH, ABTS radical scavenging) of M35 and G55 was equivalent to 10.55, 17.59 mg/100 g of Vitamin C and 97.39, 33.92 mg/100 g of Vitamin C, respectively. Consequently, M35 and G55 offer promising alternatives to preserved yuzu, providing low-sugar yuzu syrups enriched with functional ingredients.

• 생명과학회지
• /
• 제27권2호
• /
• pp.131-138
• /
• 2017

본 연구에서는 오미자 가공산업의 부산물 이용을 위해, 오미자 열매, 씨 및 착즙 후의 박의 에탄올 추출물을 각각 조제하고, 이들의 유용생리활성을 평가하였다. 오미자 열매, 씨 및 박의 추출 수율은 각각 28.3, 22.1 및 7.2%로 나타났으며, 추출물들의 총 폴리페놀 함량은 각각 8.81, 37.22 및 9.20 mg/g로 나타났다. 총 플라보노이드 함량 분석 결과 박(4.31 mg/g)>씨(1.25 mg/g)>열매(0.76 mg/g) 추출물 순으로 나타났다. 항산화 활성 평가 결과, 다양한 radical (DPPH 음이온, ABTS 양이온 및 nitrite) 소거능 및 환원력 평가에서 박>씨>열매 추출물 순으로 항산화능이 나타났으며, 오미자 박 추출물의 DPPH 양이온, ABTS 음이온 및 nitrite 소거능에 대한 $RC_{50}$는 각각 226.2, 192.5 및 $92.5{\mu}g/ml$로 계산되었다. 항균 활성 평가 결과, 오미자 열매, 씨 및 박 추출물(0.5 mg/disc)은 B subtilis 및 P. vulgaris 균에 대한 강한 항균 활성을 나타내었다. 혈액응고저해 활성의 경우, 오미자 열매 및 박 추출물은 5 mg/ml 농도에서 TT, PT 및 aPTT를 모두 무첨가구에 비해 15배 이상 연장시켰으며, 박 추출물(2.5 mg/ml)은 aspirin (1.5 mg/ml)과 유사한 혈액응고 저해를 나타내었다. 혈소판응집 저해 활성 평가 결과, 열매 추출물과 씨 추출물(0.25 mg/ml)은 동일농도의 aspirin 보다 우수한 혈소판 응집저해 활성을 나타내었다. 상기의 오미자 시료들은 0.5 mg/ml 농도까지 유의적인 용혈활성이 나타나지 않았다. 본 연구 결과는 오미자 가공산업에서 발생하는 오미자 씨와 착즙 후의 박을 이용한 항산화, 항균, 항혈전 기능성 소재 개발이 가능함을 제시하고 있다.

• 대한한의학방제학회지
• /
• 제15권1호
• /
• pp.21-35
• /
• 2007

Objectives : The aim of this study is to find the therapeutic meaning of the Portulacea in herbal medication. Methods : About the origin, the component, the processing the drug, the properties and tastes of drugs, the meridian tropism, the effects, the treating disease, the contraindication and the method of administration, I have researched thirty literatures to mention the Portulacea in time sequence. Results : 1. The Portulacea belongs to the Portulacaceae herbs and it consists of noradrenaline, potassium sometimes containing small amounts of dopamine, dopa, malic acid, citric acid, glutamine acid, asparagin acid, alanine, cane sugar, grape sugar, fruit sugar. 2. The processing of drug is wash of water clealy, and remove the foreign substance. Then the drug is cutting to use. The method of burnt to ashes is used, too. 3. The properties and tastes of drugs is acid, cold, nontoxic. The meridian tropism is mainly liver and the large intestine meridian. 4. From old times, Portulacea has come into general use to treat eczema, the rose erysipelas, an acne, hemorrhoids, discharge from the womb etc. because it is effective on neutralizing poison, reduce a swelling, a tumor, an abscess and stopping of bleeding 5. Portulacea must be stoped When person have a weak digestive organ becase it is cold herba. And don't take use with Fish and shellfish. 6. Portulacea is useful method to external care. To use the herba, pulverize amount of property and then apply to the the affected part Conclusions : This study showed that the Portulacea is useful herb to treat of skin disease and useful method to external care.

• 한국식생활문화학회지
• /
• 제5권3호
• /
• pp.349-359
• /
• 1990

This study was carried out to understand and analyze the cooking and processing methods presented in CHE MIN YO SUL, Chinese books of husbandary was written in sixth century. This book was composed of two parts-part I is Agricultural production and part II is product-Utilization. Especially, wines and yeast(NU RUK) written in part II were studied at this study paper. Most of yeast was made of barley and wheat. These materials had been prepared as raw, steamed, and roasted state by proper ratio with kinds of yeast and then fermented as dough state. Occasionally, various kinds of soup made from cocklebur, leaves of mulberry tree, wormwood etc. put into yeast dough. Yeast doughs were shaped round and square with or without hole in the center, made in July of the lunar calendar and fermented for 3 or 4 weeks. There were 43 kinds of wines in this book. Most of them were made of all kinds of cereals grown at that time-rice, waxy rice, millet, waxy millet etc. These cereals had been steaming or cooking gruel with grain or powder state and then fermented with yeast. These wines were prepared by single or double brewing methods and the kinds of double brewing wines were more than single brewing wines by two times. There were none of wines made from fruit and distilled wines. Generally, single brewing wines were not made in Apr., Nov., Dec., of the lunar calendar and double brewing wines were not made in Aug., Oct., Nov., of the lunar calendar. And ripenning periods of wine brewing were various, from 1 day to 7 months for single brewing, from 2 days to 8 months for double brewing.

• 한국식품저장유통학회지
• /
• 제23권6호
• /
• pp.765-771
• /
• 2016

전통적인 저온숙성 당절임 방법을 이용한 오미자청의 제조과정에서 최적의 배양시간을 찾기 위하여 파일럿 규모(1톤)의 연구를 시행하였다. 생오미자와 동일한 량으로 투입된 설탕은 배양시간에 따라 과당과 포도당으로 전환되었으며 오미자청에 존재하는 유리당의 조성은 68일 이상의 배양기간에서는 일정하게 유지되었다. 배양기간에 따른 오미자청의 pH는 일정한 수준을 유지한 반면, 적정 산도와 유기산의 함량은 배양시간 37일까지 지속적으로 증가한 이후 68일 이후에는 일정한 조성을 유지하였다. 생오미자에 존재하는 주요 유기산은 숙신산으로 확인되었으며 오미자청에 존재하는 유기산의 조성 역시 생오미자와 유사하였다. 오미자에 존재하는 주요 생리활성물질인 총 플라보노이드와 폴리페놀화합물은 60일 이상 배양한 오미자청에서 높은 함량을 보이고 138일까지 일정한 수준을 유지하였다. 특히, 오미자청에 함유된 총 플라보노이드와 폴리페놀화합물의 함량은 생오미자 과육에 비하여 각각 9배와 5배 정도 높은 수준으로 증가하였다. 생오미자를 저온숙성 당절임 방법을 적용하여 오미자청으로 제조 가공하는 과정에서 유리당, 유기산 및 생리활성물질 등에 대한 일정한 품질을 확보를 위해서는 최소 60일 이상의 배양기간이 필요한 것으로 확인되었다. 이러한 연구결과는 전통적인 저온숙성 당절임 방법으로 제조 가공되는 오미자청의 고품질화와 기능성 음료 개발을 위한 제조 가공공정의 표준화에 유용한 정보가 될 것으로 판단된다.