• Title/Summary/Keyword: Lotus Leaf

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Quality Characteristics of Dumpling Shell Added with White Lotus Leaf Powder (연잎가루를 첨가한 만두피의 품질 특성)

  • Park, Jin-Hee;Kim, Eun-Mi
    • Culinary science and hospitality research
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    • v.19 no.2
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    • pp.1-10
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    • 2013
  • This study was conducted to investigate the quality characteristics of dumpling shells with white lotus leaf powder added to them (WLL 0%, 1%, 2%, 3%, 4%). Water binding capacity and moisture content of dumpling shells were not significantly different. Solubility in $50^{\circ}C$, $60^{\circ}C$ and $70^{\circ}C$ of dumpling dough has decreased because of the addition of WLL. Swelling power of all groups has increased because of increased amount of WLL content and temperature. The mass, volume and water absorption rate of cooked dumpling shells decreased while the turbidity of cooked dumpling shells increased with the addition of WLL. L and b value of dumpling shells significantly decreased and a value of dumpling shells significantly increased because of increased amount of WLL contents. Hardness and adhesiveness of dumpling shells significantly increased in WLL2 and WLL3 groups. Cohesiveness, springiness, gumminess and chewiness of cooked dumpling shells were not significantly different according to the additions of WLL. In sensory evaluation, color, flavor, white lotus leaf flavor, taste and overall acceptability significantly increased in WLL3. Stickiness, softness, chewiness of cooked dumpling shells were not significantly different according to the additions of WLL. Overall, the result of this study indicates that the dumpling shell containing 3% WLL powder was most preferred among the groups.

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Inhibitory Effect of Nelumbo nucifera Leaf Extracts on the Formation of Heterocyclic Amines and Mutagenicity during Cooking Beef Steak (쇠고기 스테이크 조리 시 백련 잎 추출물에 의한 Heterocyclic Amine류의 생성 및 돌연변이원성 억제 효과)

  • Moon, Seung-Eun;Sung, Ji-Hoon;Shin, Han-Seung
    • Food Science of Animal Resources
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    • v.31 no.4
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    • pp.563-569
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    • 2011
  • Heterocyclic amines (HCAs) are food mutagens and carcinogens that are found in cooked fish, meat, and protein-rich foods. This study examined the inhibitory effect of marinades containing a Nelumbo nucifera leaf fraction on HCA formation in cooked beef steak. As a result of the Ames assay, cooked beef marinated with the N. nucifera leaf butanol fraction (2.0 g) cooked at $190^{\circ}C$ showed a 61.5% reduction in overall mutagenicity. However, these data revealed no significant difference in mutagenicity in the ethanol, ethyl acetate, or water fractions. Formation of MeIQx (2-amino-3,8 dimethylimidazo[4,5-f]-quinoxalin) and PhIP (2-amino-1-methyl-6-phenylimidazo[4,5-b]-pyridine) was inhibited 60.7-63.5%. Cooked beef marinated with the water fraction of the N. nucifera leaf significantly (p<0.05) reduced the formation of MeIQx, PhIP, and DiMeIQx (2-amino-3,4,8 trimethylimidazo[4,5-f]-quinoxaline) by 65.3, 67.6, and 73.9%, respectively. These results show that marinades containing the N. nucifera leaf fraction could be an alternative method for reducing HCA formation in cooked beef steak.

New Fungal diseases of Economic Resource Plants in Korea (III) (유용 자원식물의 진균성 신병해(III))

  • 신현동
    • Korean Journal Plant Pathology
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    • v.11 no.3
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    • pp.197-209
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    • 1995
  • This paper is a third report about the new fungal diseases of economic resource plants in Korea. It contains short descriptions on symptoms, occurrence conditions, pathogen, and some phytopathological notes for each of 10 fungal plant diseases. They are angular leaf spot of Achyranthes japonica by Cercospora achyranthis causing leaf spot and defoliation in the shade of plants, leaf spot of Armoracia lapathifolia by Cercospora armoraciae causing leaf spot to blight from the rainy season to autumn, hypophyllous mold of Dioscorea tokoro by Distocercospora pachyderma causing leaf spot and yellowing, hypophyllous mold of Artemisia spp.by Mycovellosiella ferruginea causing leaf spot and yellowing, angular leaf spot of Aralia elata by Pseudocercospora araliae causing velvety leaf spot and defoliation, hypophyllous mold of Lycium chinense by Pseudocercospora chengtuensis causing velvety leaf spot and defoliation from the rainy season to autumn, angular leaf spot of Diospyros lotus by Pseudocercospora disospyri-morrisianae causing leaf spot and defoliation from summer to autumn, brown leaf spot of Impatiens textori by Pseudocercospora nojimae causing leaf spot to blight from the rainy season, leaf spot of Cephalonoplos segetum by Ramularia cirsii causing leaf spot to blight throughout the growing season, and white mold of Leonurus sibiricus by Ramularia leonuri causing leaf spot to blight mostly in autumn.

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Influence of Healthy Image on Preference and Intake of Vegetables (채소 식품의 건강 이미지가 기호와 섭취에 미치는 영향)

  • Park, Mo-Ra
    • Journal of the East Asian Society of Dietary Life
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    • v.23 no.2
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    • pp.141-152
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    • 2013
  • This study investigated the effects of image on the preference and intake frequency of 19 vegetables. A total of 359 usable surveys were collected using a convenient sampling method. The subjects included females (51.8%), university students (50.7%), home residents (66.9%) and subject's spending 20,000~40,000 won on meals/week (41.5%) and eat out 2~3 times/week (29.5%). The intake frequency of vegetables was 2~3 times per month. The healthy image of all vegetables was good overall and the average preference was 3.78 (out of 5 on the Likert). Tomatoes had the healthiest image, onions the highest preference, and Korean cabbage the highest intake frequency. For males, the vegetable with the healthiest image was sesame leaf, while the healthiest foods for females were broccoli and tomatoes. Elementary students had a healthier image of cucumber, bean sprouts, radish, sesame leaf, lettuce, radish leaf, and cabbage than university students and adults. Home residents had a healthier image of cabbage and burdock than other types of residents. Subject that st over 20,000 won per week on meals had a higher image of most vegetables. In terms of preference, males liked Korean cabbage, green pumpkin, balloon flower roots, radish leaf, and lotus root, but female liked tomatoes. In addition, elementary students, home residents, and subjects who eat out less often tended to prefer vegetables. In terms of intake, there was a high frequency of intake for all vegetables in adults. Home residents specifically had a higher intake of cucumber, carrot, bean sprouts, spinach, green pumpkin, balloon flower roots, lettuce, radish leaf, broccoli, burdock, lotus root, and tomato. Overall, the healthy image of vegetables had a positive influence on their preference and intake frequency. Therefore, to encourage the intake of vegetables, direct or indirect variables should be examined.

The Biblographical Study on the Processing Methods of Traditional Nuruk (전통누룩 제조에 대한 문헌고찰)

  • 이미경;이성우;배상만
    • Journal of the East Asian Society of Dietary Life
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    • v.1 no.3
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    • pp.277-298
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    • 1991
  • Review of Korean and Chinese traditional nuruk was performed on the longitudinal change of ingredients and method of each nuruk. Manufacturing process of common nuruk was that flour, wheat chaff, grinded green pea and smartweed were doughed, footpressed to make 凹 type, covered it with mugwort, lotus leaf and cocklebur leaf and suspended it with string for 60 days to get wild mold. This is named Beungkuk. Manufacturing process of Sankuk was that cooked rice or uncooked rice grain was scattered, mixed often for 30 days. Ryokuk and Hongkuk are called Sankuk.

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Antioxidant and Neuronal Cell Protective Effects of Aqueous Extracts from Lotus Leaf Tea

  • Jeong, Chang-Ho;Jeong, Hee-Rok;Choi, Sung-Gil;Heo, Ho Jin
    • Journal of agriculture & life science
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    • v.46 no.2
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    • pp.115-127
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    • 2012
  • Antioxidant and neuronal cell protective effects of aqueous extract from lotus (Nelumbo nucifera) leaf tea (LLTE) were investigated. The 2,2'-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) radical scavenging effect, ferric reducing antioxidant power, and malondialdehyde inhibition of LLTE were increased in a dose dependent manner. Intracellular reactive oxygen species accumulation resulting from hydrogen peroxide ($H_2O_2$) treatment was significantly reduced when LLTE were present in the media compared to PC12 cells treated with $H_2O_2$ only. In neuronal cell viability assay using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazoliumbromide (MTT), LLTE showed protective effect against $H_2O_2$-induced neurotoxicity. In addition, lactate dehydrogenase release into medium was also inhibited by LLTE (7.13-43.89%). Total phenolics of LLTE were 33.16 mg/g and a quercetin was identified as major phenolics (105.93 mg/100g). Therefore, above these data suggest that LLTE including quercetin may be useful in the natural antioxidant substance, and may reduce the risk of neurodegenerative disease.

Seeding Vigro of Two Lotus Entries and Their Reciprocal F Hybrids (두 Lotus종과 그들 교잡종간의 유식물 활력 비교)

  • Sam Nam Hur;C. J. Nelson;P. R. Beuselinck;J. H. Coutts
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.14 no.4
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    • pp.288-294
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    • 1994
  • Seedling vigor of introgressive hybrids between birdsfoot refoil 'MO-20"(Lotus corniculatus) used as the maternal parent and tetraploid(2n=4x=24)accession PI302921 narrowleaf trefoil(Lotus corniculatus L.), and parents were compared in terms of dry matter accumulation , net photosynthetic rate, dark respiration rate, and growth analysis. The hybrids showed better seedling vigor than PI302921 as they had lower dark respiration rate and higher relative growth rate (RGR) than PI302921. Hybrids grew faster than MO-20, but there was not significant difference between them. Net photosynthesis per unit area increased during three weeks after emergence without difference among the entries, then decreased sharply with leaf age and shading marking much differences among entries Dark respiration rate was very high just after emergence, after which it decreased rapidly until it reached a stable level at 1 week through 3 weeks of age, and then dropped again. In general, dark respiration, photosynthesis, and seedling growth of the hybrid was similar to those if MO-20. Although there are some reports about interspecific hybrids of Lotus species, it still remains as a new area for genetic improvement of seedling vigor of L. corniculatus.atus.

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Blood-compatible Bio-inspired Surface of Poly(L-lactide-co-ε-caprolactone) Films Prepared Using Poor Co-solvent Casting (비용매 휘발법을 이용한 생체모사 혈액친화성 폴리락티드-카프로락톤 공중합체 필름의 제조)

  • Lim, Jin Ik;Kim, Soo Hyun
    • Polymer(Korea)
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    • v.39 no.1
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    • pp.40-45
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    • 2015
  • Simple poor-cosolvent casting was used to surface treat biodegradable elastic poly(L-lactide-co-${\varepsilon}$-caprolactone) (PLCL; 50:50) copolymer films that presented lotus-leaf-like structures. We evaluated whether the lotus-leaflike-structured PLCL (L-PLCL) films could be used as a biomaterial for artificial vascular grafts. The surface morphology, hydrophobicity, and antithrombotic efficiency of the films were examined while immersed in platelet-rich plasma (PRP) using scanning electron microscopy (SEM) and a contact angle meter. The recovery and crystallinity of the films were measured using a tensile-strength testing machine and an X-ray diffractometer, respectively. The solvent containing acetic acid, as a poor co-solvent, and methylene chloride mixed in a 1:2 ratio produced an optimal PLCL film with a water contact angle of approximately $124^{\circ}$. Furthermore, the surface of the L-PLCL films immersed in PRP showed a lower rate of platelet adhesion (<10%) than that of the surface of an untreated PLCL film immersed in PRP.