• Title/Summary/Keyword: Lotus

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Quality Characteristics of Fresh-cut Lotus Roots According to the Temperature of the Wash Water (세척수 온도에 따른 신선편이 연근의 품질)

  • Chang, Min-Sun;Kim, Ji-Gang;Kim, Gun-Hee
    • Food Science and Preservation
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    • v.18 no.3
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    • pp.288-293
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    • 2011
  • This study investigated the changes in the quality of fresh-cut lotus roots that were treated with hot water. Lotus roots were purchased from Daegu, Korea. They were washed, peeled, and cut into lcm-thick slices with a ceramic knife. The peeled and sliced lotus roots were dipped for 45 sec in water at 30, 55, and $80^{\circ}C$. After they were air-dried at room temperature, the slices were packed in polyethylene films and stored at $4^{\circ}C$ for 12 d. Then the changes in the weight loss, color, total viable cell, and sensory characteristics were measured. Generally, the weight loss of the lotus roots that were treated with hot water slightly increased. The application of the heat treatment delayed the browning of the lotus roots, especially the treatment with $55^{\circ}C$ hot water. The L and a values of the lotus roots that were treated with $80^{\circ}C$ hot water significantly increased during their storage, though. The heat treatment effectively inhibited the growth of microorganisms. The organoleptic quality of the lotus roots that were treated with $55^{\circ}C$ hot water was the best.

Nutritional Composition and Antioxidant Activity of the White Lotus (Nelumbo nucifera Gaertn) Leaf (백련(白蓮) 잎의 영양 성분 및 항산화 활성)

  • Kim, Kum-Suk;Shin, Mee-Kyung;Kim, Hyun-Young
    • Journal of the East Asian Society of Dietary Life
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    • v.18 no.4
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    • pp.499-506
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    • 2008
  • The nutritional composition of the white lotus(Nelumbo nucifera Gaertn) leaf are moisture($1.87{\pm}0.06%$), crude ash($9.57{\pm}0.07%$), crude protein($15.53{\pm}0.4%$) and crude lipid($2.42{\pm}0.1%$) per 100g. The highest mineral content was K and Ca. The principal free sugars in the white lotus leaf was sucrose, fructose and glucose. The total phenolics compounds evidenced maximal levels of $8,842.73{\pm}20.57\;g/100g$. DPPH and hydroxyl radical of scavenging ability of each sample tended to increase with increasing degrees of the sample concentration. The $IC_{50}$ values of the ethanol extract, n-hexane, chloroform, ethylacetate, butanol and water fraction from the white lotus leaf to DPPH radicals were 5.65, 8.5, 8.27, 2.03, 2.3 and $13.7\;{\mu}g/mL$ respectively. The $IC_{50}$ values of the hydroxyl radical scavenging ability of the ethanol extract, ethylacetate, butanol and water fraction were 390, 574, 327 and $378\;{\mu}g/mL$ respectively.

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Research on Lotus Root Eungi and Development of Beverage from Lotus Root Starch (연근응이의 제조 및 연근응이 음료 개발)

  • Kim, Sung-Hae;Suk, Jung-Eun;Cho, Mi-Sook;Choi, Nam-Soon
    • Journal of the Korean Society of Food Culture
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    • v.26 no.6
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    • pp.734-742
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    • 2011
  • This study was conducted to investigate the physicochemical characteristics of Eungi, which is used as a breakfast or health food. We manufactured lotus root starch and Eungi by a traditional method and discovered that the viscosity of Eungi with 4-5% starch content was similar to fermented milk. When the physicochemical properties and sensory acceptability of a Eungi beverage combined with different amounts (0.5, 1.0, 1.5, and 2.0%) of lotus root starch were investigated, consumer acceptability was highest with Eungi combined with 0.5% starch and 6% sugar. When the physicochemical properties and sensory acceptability of Eungi beverage combined with different extract bases were investigated, the acceptability of taste and texture was highest with purple sweet potato extract and the acceptability of color was highest with omija extracts.

Species Identification and Tree-Ring Dating of the Lotus Pedestal of Amitabha Statue at Ssangbong-Temple in Hwasun, Korea (화순 쌍봉사 극락전 아미타불 연화좌대의 수종 및 연륜연대 분석)

  • Kim, Yo-Jung;Son, Byung-Hwa;Oh, Jung-Ae;Jo, Tae-Gun;Choi, Sun-Il;Park, Won-Kyu
    • Journal of the Korea Furniture Society
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    • v.23 no.1
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    • pp.95-102
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    • 2012
  • The objective of this study was to conduct the species identification and tree-ring dating of Lotus Pedestal of the Amitabha Statue at Ssangbong-Temple in Hwasun. The six wood blocks used for the Lotus Pedestal were hard pines (Pinus spp.; diploxilon) except one piece which was ginkgo (Ginkgo biloba L.). The lotus leaves surrounding the pedestal body were also made of ginkgo. Tree-ring patterns of 3 blocks were synchronized and a 133 years chronology was made. The chronology was crossdated well with the master chronology of Japanese red pine in South Korea. It dated back to A. D. 1551~1683, i.e. the last ring dated A. D. 1683. Through the estimation of the number of sapwood rings removed during carving, the felling year was calculated A. D. $1704{\pm}10$. The calligraphic writing on the Pedestal indicated that this statue was made in A. D. 1694. Therefore, the accuracy of the tree-ring dating has been proven.

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Physicochemical and Sensory Characteristics of Tofu Prepared with Lotus Root Powder (연근 분말 첨가량에 따른 두부의 이화학적 및 관능적 특성)

  • Park, Bock-Hee;Kim, Sung-Doo;Jeon, Eun-Raye;Cho, Hee-Sook
    • Journal of the East Asian Society of Dietary Life
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    • v.20 no.4
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    • pp.516-523
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    • 2010
  • This study was conducted to investigate the physicochemical and sensory characteristics of tofu prepared with the addition of lotus root powder (LRP). The moisture, crude ash, carbohydrate, crude protein, and crude lipid contents of the lotus root powder were 8.29%, 4.73%, 30.66%, 47.84%, and 8.48%, respectively. The yield rate of the tofu did not differ significantly according to the level of added LRP; however, there was a significant decrease in pH and a significant increase in acidity. The L and b values of the tofu decreased as the amount of LRP in the formulation increased, whereas the a value increased. Furthermore, hardness and cohesiveness increased significantly as the level of LRP increased. In sensory evaluation, LRP tofu had low scores in air cell size and a beany smell, but high scores in hardness. In terms of overall acceptability, the preferred tofu samples were the control and that containing 0.3% lotus root powder.

Fermentation Characteristics of Takju Prepared with Lotus Leaf (연잎을 첨가한 탁주의 발효 특성)

  • Yoo, Ha-Na;Chung, Chang-Ho
    • Korean journal of food and cookery science
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    • v.27 no.5
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    • pp.577-587
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    • 2011
  • In this study, lotus leaf was added to a Takju (Korean milky rice wine) preparation to evaluate its effects on physicochemical and fermentation properties. For rapid saccharification Takju was stored at 25$^{\circ}C$ for 2 days and then temperature was switched to 18$^{\circ}C$ to mature the wine for 21 days. From the start of fermentation to 2-days, the pH of Takju decreased rapidly and acidity increased. Maltose, a byproduct of starch saccharification, increased for 2 days then rapidly decreased. Glucose fluctuated for 7 days and of the 21-days fermentation. The ethanol production rate was highest during the first 7 days, then slowed. Total viable yeast and lactic acid bacterial counts increased rapidly for 2 days and then decreased gradually thereafter. Leuconostoc spp. grew rapidly for 1 day and sharply disappeared with decreasing pH. DPPH radical scavenging activity was significantly higher for Takju prepared with lotus leaf than without. The overall acceptance of Takju tended to increase when it was prepared with lotus leaf.

Preliminary Results-Nature as Metaphor : Innovative Visualization of Accounting Information with Lotus Plants

  • Raungpaka, Voraphan;Savetpanuvong, Phannaphatr;Tanlamai, Uthai
    • Journal of Information Technology Applications and Management
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    • v.20 no.2
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    • pp.1-14
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    • 2013
  • Learning accounting has always been a challenge for non-accounting students and managers. Understanding accounting information requires more than a numerical description of financial and income statements. Current accounting practice presents accounting reports in the form of tables with values or in two or three dimensional graphs generated by a spread sheet program. The present study proposes an alternative visualization with metaphor from nature as a learning device for novice users and managers. After surveying various kinds of plants, the lotus flower was chosen as an attractive analogy because every part of the plant from leaves to roots is usable and can have economic value. Moreover, lotus flowers, whether man-made or natural, can easily be part of a familiar, natural ecology representing both beauty and serenity. Results from online survey respondents (n = 220) showed that there was no significant difference on overall usability of the Lotus visualization between expert users and novice users. However, verbally-oriented users differed Significantly from visually-oriented users in their usability assessment, perceived usefulness, and intention to use the Lotus visualization.

A Study on the Origin and Change of Moro-Dancheong Meoricho (모로단청 머리초의 기원과 변화과정 연구)

  • Lee, Eun-Hee
    • Journal of architectural history
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    • v.27 no.1
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    • pp.7-16
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    • 2018
  • Meoricho of Dancheong is a pattern that placed at the end of each elements. We call Dancheong which has Meoricho Moro-dancheong. Meorico is the pattern comes from the metal ornaments of ancient architecture. The most primitive forms of Meoricho is Saw-toothed Design. Since the influence of Buddhism in the Northern Wei dynasties Saw-toothed Design have changed Tied lotus Design. Tied lotus Design of the Unified Silla it becames Gak-yeop Design and Yeo-ui-doo Design Meoricho in Goryeo Dynasty. Since Goryeo Dynasty there's been great and small variations in the internal composition of Meoricho, but the outline has maintained as it was. Therefore the completed form of the outline of Meoricho could be regarded as the one that was formed in Goryeo Dynasty.

Anti-oxidant and Whitening Effects of Cell Lytic Enzyme-treated Lotus Leaf Extract (세포벽 분해효소 처리에 의한 연잎 추출물의 항산화 및 tyrosinase 저해 활성)

  • Choi, Sun-Ju;Kim, So-Young;Lee, Sung-Chul;Lee, Jin-Man;Lee, In-Suk;Jung, Moon-Yung;Yang, Sam-Man;Chae, Hee-Jeong
    • KSBB Journal
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    • v.24 no.6
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    • pp.579-583
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    • 2009
  • The effects of cell lytic enzyme treatment on total phenolic content, antioxidant and antityrosinase activities of lotus leaf were investigated. The dried lotus leaves were hydroyzed by cell lytic enzymes such as Promozyme, Ceremix, Pectinex, Ultraflo, Celluclast, Pentopan, Tunicase, Viscozyme at their optimum pHs (pH 5-8) at $50^{\circ}C$ for 4 hrs. Depending on the enzymes used, total phenolic compounds content was measured as $1,079-1,476{\mu}g$/mL, and antioxidant activities and whitening activities were increased by 5~10% and 20%, respectively Among the tested hydrolytic enzymes, Promozyme (pullulanase) was selected as the most suitable enzyme for the extraction of total polyphenol from lotus leaf. The optimal dosage of Promozyme were found to be 1-2% (w/w). By Promozyme treatment, total phenolic compounds content of the lotus extract significantly increased compared to the extraction without enzyme treatment.