• 대한안전경영과학회지
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• 제26권2호
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• pp.93-105
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• 2024

In this study, based on previous research on personal broadcasting, we indirectly measured content quality, YouTuber attributes, user satisfaction, and behavioral intention, which are latent variables that cannot be directly measured, as measurement variables, and then measured theoretically between the latent variables. In order to analyze the causal relationship, we used a structural equation model to determine to what extent the content quality of the YouTube mukbang channel and the YouTuber's attributes influence behavioral intentions such as purchase, recommendation, and continued use according to viewers' satisfaction with use. We intend to analyze and verify the relationship between related variables. The research results are as follows. First, the value, relevance, timeliness, completeness, and data quantity of content quality were found to have no significant impact on user satisfaction. Second, the trustworthiness, expertise, attractiveness, and intimacy of YouTuber attributes were found to have a significant impact on user satisfaction, but the similarity of YouTuber attributes did not have a significant impact on usage. Third, user satisfaction was found to have a significant impact on behavioral intentions and purchase intentions. However, user satisfaction was not found to have a direct significant impact on recommendation intentions or continued usage intentions.

• 한국균학회지
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• 제39권2호
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• pp.122-125
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• 2011

The goal of this study was to provide shelf-life of Gugija-Liriope tuber raw makgeolli. After we prepared Gugija-Liriope tuber raw makgeolli by using Gugija, Liriope tuber, nuruk, cooked rice and Saccharomyces cerevisiae C-2, changes of its quality and physiological functionality were investigated during the storage at $4^{\circ}C$ and $20^{\circ}C$. Ethanol contents was decreased from 8.3% to 7.2% for storage of 9 days at $4^{\circ}C$ and 6 days storage at $20^{\circ}C$, respectively. Antihypertensive angiotensin I-converting enzyme inhibitory activity of Gugija-Liriope tuber makgeolli was increased from 63.1% to 66.0% after storage for 9 days at $4^{\circ}C$. Total acceptability of 9 days storage makgeolli at $4^{\circ}C$ was still good. In conclusion, shelf-life of Gugija-Liriope tuber raw makgeolli was 9 days at $4^{\circ}C$ in this respect of ethanol contents, antihypertensive action and total acceptability.

• 생약학회지
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• 제33권4호통권131호
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• pp.296-300
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• 2002

The contents of alkaloids in raw Cho O(Aconiti Ciliare Tuber) and its processed products were determined by high performance liquid chromatography. Processing methods 1 and 2 lowered the contents of alkaloids more than the method 3. Cho O processed with method 1 or 2 showed even lower alkaloid contents than commercially available Processed Aconiti Tuber Powder(PATP). The contents of aconitine and hypaconitine in MeOH extracts of Cho O treated with method 3(10 min irradiation) and mesaconitine of Cho O treated with method 3(5 min) were comparable to those of PATP.

• 한국농림기상학회지
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• 제26권2호
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• pp.103-113
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• 2024

남부지역 논에서 봄감자를 재배하고 수확시기를 달리하여 상서 수량과 괴경의 품질 분석 등을 통해 적정 수확시기를 제시하고자 하였다. 봄감자 수량은 개화 후 30-50일에 총수량, 상서수량 등이 최대에 도달하였으며, 상품성 있는 감자의 비율도 높았다. 기형서나 열개서 등 외부생리장해도 개화 후 40일까지는 발생하지 않았으나, 그 이후에는 일부 괴경에서 발아하는 등 2차 생장이 나타났다. 영양성분중에 탄수화물이 60% 이상으로 높고, 개화 후 50일까지는 유의미한 차이를 보이지 않았다. 그리고 조단백질 함량은 수확시기가 늦어짐에 따라 점차 낮아졌다. 괴경의 무기질 함량도 수확시기가 늦어짐에 따라 점차 감소하였으며, 개화 후 30-40일에 가장 낮았다. 따라서 남부지역 봄 감자 재배 시 수확적기는 고온이나 침수의 영향을 덜 받으면서 괴경 비대가 최대에 이르는 개화 후 30-40일인 것으로 판단된다.

• 한국초지조사료학회지
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• 제7권3호
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• pp.157-161
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• 1987

In order to utilize the tuber of Jerusalem artichoke (Jerusalem tuberosus L.) which has been considered one of the most economical resources for bioenergy, the tubers of the plant were processed into silage in 11 lab-silo with three levels of mixture of concentrates i.e. 10, 20, 30%. The silage was stored for 20 to 40 days before analyses. The quality of silage was compared with those of the tube-only silage without concentrates. Aproximate composition, pH, ammonium nitrogen, total nitrogen, and organic acids were analyzed. The results obtained are summarized ; 1. With the mixture of concentrates, the water content of the silage was able to be adjusted to 70 percent and NDF significantly increased (P<0.05) while ADF significantly decreased. 2. The content of water-soluble carbohydrate (WSC) was significantly decreased in silages of the mixture of concentrate and the tuber (P<0.05), while total nitrogen and ammonium nitrogen increased. 3. Tube-only silage gave satisfaction in fermentation, particularly organic-acid fermentation. As the storage period extended, Flieg's score of the silage was improved. Conclusively, the tuber of Jerusalem artichoke found to satisfy the requirements of good silage and to be recommended as a good resource for all-inane silage provided the tuber was ensilaged with 20 to 30 percent concentrate.

• Preventive Nutrition and Food Science
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• 제19권4호
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• pp.314-320
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• 2014

Flavor quality of Liriopis tuber tea that was made using a steaming process was studied by measuring changes in headspace volatile compounds. Headspace volatile compounds of the prepared samples were isolated, separated and identified by the combined system of purge & trap, automatic thermal desorber, gas chromatography, and mass selective detector. As steaming frequencies were increased, the area percent of aldehydes decreased from 32.01% to 3.39% at 1 and 9 steaming frequency times, respectively. However, furans and ketones increased from 18.67% to 33.86% and from 9.60% to 17.40% at 1 and 9 times, respectively. The savory flavor of Liriopis tuber tea was due to a decrease in aldehydes contributing a fresh flavor at the 1st steaming process and newly generated furans from nonenzymatic browning with repeated steaming frequencies. These results will provide basic information for quality control of the newly developed Liriopis tuber tea.

• 한국식품영양과학회지
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• 제42권7호
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• pp.1096-1102
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• 2013

본 연구는 볶음 처리를 한 맥문동 첨가 국수의 제면적성 및 품질특성을 살펴보기 위하여 생면을 제조한 후 최적의 맥문동 첨가비율을 밝히고자 하였다. 볶음 처리를 한 맥문동 분말을 밀가루 중량 대비 1%, 3%, 5%, 7% 및 9%를 첨가하여 제조한 국수의 제면적성과 품질특성을 조사하였다. 맥문동 분말을 첨가하여 제조한 국수의 조리 후 중량과 부피 및 수분흡수율은 맥문동 첨가량이 증가할수록 유의적으로 감소하였으며, 탁도는 증가하였다. 색도는 생면과 조리면 모두 맥문동 첨가량이 증가할수록 대조구에 비해 L값은 감소하였으며 a, b값은 증가하였다. 탄력성, 응집성, 씹힘성, 부서짐성 등의 조직감은 모두 맥문동 첨가량이 증가할수록 감소하는 경향을 보였다. 관능검사 결과 맥문동 분말 7% 첨가국수가 가장 좋은 것으로 나타났다. 하지만 맥문동 첨가량이 증가할수록 고형분의 용출로 인한 탁도 증가와 조직감의 저하가 나타났으므로 이를 보완하기 위해 품질개량제인 활성글루텐을 첨가하여 품질 향상을 시도하였다. 품질특성 실험결과 기능성과 관능 등에서 가장 적절한 것으로 선정된 맥문동 7% 첨가군에 활성글루텐 1%, 2%, 3%, 4% 및 5%를 첨가하여 품질특성을 살펴보았다. 이 결과 조리 후 중량, 부피, 수분흡수율은 글루텐 첨가량과 비례하여 증가하였으며, 탁도는 감소하였다. 탄력성, 응집성, 씹힘성, 부서짐성 등의 조직감도 모두 향상되었다. 관능검사 결과 활성글루텐 3% 첨가구가 관능적으로 가장 좋은 것으로 나타났다. 결과적으로 맥문동 분말 7%에 활성글루텐 3%를 첨가하였을 때 가장 우수한 맥문동 첨가 국수를 제조할 수 있는 것으로 나타났다.

• 한국작물학회지
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• 제47권
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• pp.135-139
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• 2002

The standard of quality was required to promote the consumption of potato and produce the high quality processing products. It will contribute the stability for processing products and the marketability of potato. The quality was determined based on size of tuber and content of dry matter. Even though the criteria of potato quality was involved many characters of tubers, the most important things were grading and packing of potato to create the consumption. For processing of raw materials, the standard of tubers had create between producer and processor according to size of tuber and content of dry matter. The evaluation of quality was performed over the standard to enhance the control of quality. In addition, the seed potato should be taken the evaluation to disease in the field during the period of cultivation and managed under the strict regulation in storage before release to farmer. Then, the producer of seed potato will make a good relationship to farmer with high quality tubers.

• 생약학회지
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• 제49권2호
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• pp.145-154
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• 2018

Aconiti Kusnezoffii Tuber has been traditionally used to treat the symptoms of rheumatoid arthritis and joint pain. The main constituents are diterpenoid alkaloids such as benzoylmesaconine, benzoylaconine, mesaconitine, aconitine, and hypaconitine. In Korea, Aconiti Kusnezoffii Tuber is officially defined as the tubers of Aconitum kusnezoffii Reichb., A. ciliare Decasisne, and A. triphyllum Nakai. On the other hand, only the tuber of A. kusnezoffii is to be used in China. In order to identify the botanical origin of Aconiti Kusnezoffii Tuber circulated in Korea, we analyzed 24 samples of Aconiti Kusnezoffii Tuber obtained from local markets for comparative DNA analysis. The sequence analysis of nrRNA ITS 1 was useful to distinguish Aconitum species and revealed that the roots of A. karakolicum were circulated in Korean markets without discretion. HPLC quantitative analysis showed that aconitine was detected at the highest amount in A. karakolicum. Authentic diterpenoid alkaloids were coinjected for quantification of aconitine-type ingredients. All data were statistically grouped by Principal Component Analysis (PCA). This study suggests that both molecular and chemical analyses should be utilized for the standardization and the quality control for Aconiti Kusnezoffii Tuber.

• 생물환경조절학회지
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• 제11권4호
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• pp.193-198
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• 2002

유색칼라 ‘Black Magic’의 노지와 비가림재배(50％ 차광) 및 구근 크기가 생육 및 구근 비대에 미치는 영향을 연구하였다. 맹아소요일수는 노지에 비해 비가림 하우스에서 4.2일 단축되었으며 맹아율과 생육은 노지보다 비가림하우스에서 좋았고 구경이 클수록 양호하였다. 노지와 비가림 하우스의 개화수 차이는 없었으나 화경장은 비가림 하우스가 노지에 비해 12.2cm길었으며 구근 크기가 클수록 개화품질이 양호하였다. 연부병 발생률은 노지와 비가림재배에서 각각 19∼83％, 3∼22％로서 노지재배에서 높게 나타났고 구근 비대는 연부병 발생이 적은 비가림재배에서 양호하게 나타났다. 정식시 구근 크기가 증가할수록 구근 비대는 양호하였으며 비가림재배에서의 구경 0.5∼1 cm구는 약 7개월 후에 구중 50.2g,구경 5.7cm로 비대하였다.