• Title/Summary/Keyword: Seed characteristics

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Seed characteristics of Withania somnifera (Solanaceae) (가지과 Withania somnifera 의 종자 형질)

  • Ghimire, Balkrishna;Ghimire, Bimal Kumar;Heo, Kweon
    • Korean Journal of Plant Taxonomy
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    • v.41 no.2
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    • pp.103-107
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    • 2011
  • The seed characteristics of Withania somnifera were studied using light and scanning electron microscopy in order to determine the specific features of this species. The seed color is yellow, and the seed shape is reniform measuring between two to three millimeters. The seed of W. somnifera is exarillate and albuminous. The seed coat type is exotestal. The seed coat develops from a single integument. The young seed coat consists of single-layered exotesta, multi-layered mesotesta and single-layered endotesta. However, parenchymatous mesotesta layers are completely compressed at maturity. Therefore, the seed coat was represented by sclerenchymatous exotesta. The primary sculpture on the seed surface is reticulate, and cells are irregular in shape with undulating anticlinal walls. In addition, the seed surface has several characteristic holes between the anticlinal walls.

Quality Characteristics of Sulgidduk Supplemented with Sunflower (Helianthus annuus) Seeds (해바라기씨를 첨가한 설기떡의 품질 특성)

  • Lim, Jeom-Hee;Kang, Yang-Sun;Kim, Jong-Gun
    • Journal of the East Asian Society of Dietary Life
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    • v.18 no.3
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    • pp.337-344
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    • 2008
  • This study was conducted to investigate the quality characteristics of Sulgidduk with different ratios of sunflower seeds (0, 3, 6, 9, 12%), stored over 3days. As amount of sunflower seed content increased, moisture contents decreased $41{\sim}36%$. The L-value decreased with increasing seed content, while a- and b-values increased. Mechanical evaluation revealed that hardness was highest at 0% and lowest at 12% seed content during the storage period. Adhesiveness was highest at 0% seed content, decreasing with increasing seed content on the first day, while cohesiveness did not show significant differences with or without seed content. Springiness increased with increasing seed content, while gumminess and chewiness decreased with increasing seed content. Results of sensory evaluations showed that color and flavor increased with addition of sunflower seed, with softness, moistness, chewiness and overall-acceptability being highest at 6% seed content. In conclusion, results prove that Sulgidduk with 6% of sunflower seed content is the best.

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Quality and Texture Characteristics of Pumpkin Seed Tofu made with Soybean (Glycine max L. Merrill) and Pumpkin (Cucurbita moschata Duch.) Seed (대두(Glycine max L. Merrill)와 호박(Cucurbita moschata Duch.) 씨를 이용하여 제조한 호박씨 두부의 품질 및 조직감 특성)

  • Shin, So Yeon;O, Hyeonbin;Joung, Ki Youeng;Kim, Young-Soon
    • The Korean Journal of Food And Nutrition
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    • v.31 no.1
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    • pp.62-69
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    • 2018
  • Pumpkin (Cucurbita moschata Duch.) seed is rich in protein and sulfur-containing amino acids. Tofu is a protein gel made from soybean, which is rich in lysine but lacking in sulfur-containing amino acids. This study was conducted to investigate the use of pumpkin seeds in tofu manufacture and to determine its quality and texture characteristics. Soybean was substituted with pumpkin seed to obtain pumpkin seed tofu at the following ratios: 10%, 30%, 50%, and 70% (P10, P30, P50 and P70). Tofu manufactured only with soybean was used as a control (Con). The higher rate of pumpkin seed substitution significantly decreased the moisture content and yield rate (p<0.05). In contrast, pH value and turbidity were significantly increased with the increase in the amount of pumpkin seed (p<0.05). The L-value (81.74~79.04), a-value (-0.19~-3.89) and b-value (12.40~9.84) of samples significantly decreased with the amount of pumpkin seed (p<0.05). No significant difference in syneresis was found among the samples (p<0.05). The hardness tended to decrease with the increase in the amount of pumpkin seed. The microstructure analysis revealed that the pore size of pumpkin seed tofu was smaller than that of Con. These results suggest that the pumpkin seed protein is a useful ingredient in the manufacture of tofu. Increasing the pumpkin seed substitution levels improves the texture of tofu.

Quality properties of Pak-choi Baikkimchi with Red Pepper (Capsicum annuum L.) Seed during Storage (고추씨를 첨가한 청경채 백김치의 저장 중 품질 특성)

  • Jung, Hyun Sook
    • Korean journal of food and cookery science
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    • v.30 no.5
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    • pp.588-595
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    • 2014
  • To develop a variety of salted vegetables, this study investigated the quality properties and sensory characteristics of pak-choi Baikkimchi with 0, 1, 3, 5 and 7% (w/w) red pepper seed during 50 days at $10^{\circ}C$. The pH of pak-choi Baikkimchi decreased little for the first days but decreased significantly after day 20. The larger amount of the red pepper seed kept pH the less affected. The total acidity of pak-choi Baikkimchi increased within 20 days. Lactic acid bacteria count, pak-choi Baikkimchi with 0% red pepper seed decreased after 30 days' increase, while pak-choi Baikkimchi with 3% and 5% red pepper decreased significantly after 20 days' increase. Hunter's color L value increased during storage but a and b value decreased. Pak-choi Baikkimchi with 0%, 5% and 7% red pepper seed on day 10, pak-choi Baikkimchi with 1% 3% red pepper seed on day 20. Flavor preference was higher on day 20 of storage. In taste analysis, pak-choi Baikkimchi with 3% and 7% red pepper seed higher preference on day 10 and with 5% on day 30. Appearance preference was higher for pak-choi Baikkimchi with 0% and 3% red pepper seed on day 10 and with the others on day 20. Texture preference decreased as the storage time. Overall preference of pak-choi Baikkimchi with 0%, 1% and 7% were higher on day 10, pak-choi Baikkimchi with 3% and 5% red pepper seed were higher on day 20. In conclusion, the quality properties and sensory characteristics of pak-choi Baikkimchi were optimal on day 20 of storage and 3% red pepper seed.

Effect of Seed Size on Seed Germination and Growth Characteristics in Safflower (Carthamus tinctorius L.) (홍화의 종자 크기별 발아 및 생장특성 분석)

  • Lim, Jung Dae;Park, Hae Il;An, Tae Jin;Lim, Ju Jin;Kim, Sung Hyop;Yoo, Bo Ra;Kim, Eun Hye;Chung, Ill Min
    • Korean Journal of Medicinal Crop Science
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    • v.20 no.6
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    • pp.415-420
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    • 2012
  • In order to evaluate the effect of seed weight on different aspect of safflower (Carthamus tinctorius L.) seed germination and growth characteristics. Quantity of sinapine leaked from seed was greater as the viability of seeds was dropped by the time elapsed of seed aging model and long storage condition in safflower (Carthamus tinctorius L.). The cultivar of safflower was Jin-Sun and the seeds that are separated to three different weights of small, middle, and large were used in this experiment. Large seeds revealed the highest germination percent, coleoptiles fresh weight, coleoptiles dry weight, radicle fresh weight and 1000 seed weights than other seed weight. Seed weight had little effect on yield while seed number exerted a positive influence. Interestingly, yield per plant and its major components, number of capsules and capsule weights, revealed a negligible relationship with oil content.

Geographic Variation of Seed Characteristics and 1-year-old Seedling Growth of Zelkova serrata (느티나무 종자특성의 지리적 변이와 1년생 유묘의 생장)

  • Kim, In Sik;Lee, Joo Hwan
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.15 no.4
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    • pp.234-244
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    • 2013
  • This study was conducted to determine the factors affecting to seed characteristics and seedling growth of Zelkova serrata. The seeds were collected from sixteen populations of Z. serrata and the seed characteristics (i.e., seed length, width, weight and full seed rate) were measured. We also measured the 1-year-old seedling growth of each population at nursery. All seed characteristics showed significant differences in population level. Seed length and seed width were positively correlated with latitude, longitude, altitude and distance from coast line of sampling site. Seed length and seed width also negatively correlated with annual mean temperature, mean temperature of growing season (Mar.~Oct.). The ratio of seed length/seed width showed inverse trend in case of seed length and seed width. Seed weight/1,000 grains had no correlation with geographic factors but showed negative correlation with annual mean dryness index. Seed weight/L showed negative correlation with latitude and longitude and positive correlation with mean temperature of growing season of sampling site. Full seed rate showed negative correlation with latitude, longitude and annual mean dryness index of sampling site. There were significant differences among populations, among family within population and among individuals within family in seedling growth. Height and diameter of root collar of seedling showed negative correlation with longitude and mean humidity of growing season of sampling site. Height growth of seedlings was not correlated with any seed characteristics but, diameter at root collar showed low negative correlation with seed weight/1,000 grains and seed weight/L. We discussed the implications of the results in view of tree improvement of Z. serrata.

Change in the Seed Characteristics and Germination Properties of Ulmus davidiana var. Japonica According to Seed Collection Time (채취 시기에 따른 느릅나무의 종자 형질 및 발아 특성 변화)

  • Tak, Woo Sik;Choi, Chung Ho;Kim, Tae Su
    • Journal of Korean Society of Forest Science
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    • v.95 no.3
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    • pp.316-322
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    • 2006
  • This study was conducted to examine the changes of seed characteristics and germination properties and to determine the most suitable collection time in Ulmus davidiana var. japonica. Seeds were collected six times with the interval of seven days after April 21, 2005 at Jeong-seon. There were differences in seed characteristics and germination properties among seed collection times. The sizes of seed and fruit increased with the collection time, but seed moisture contents decreased with the collection time after increasing until May 5. The 1,000 seeds weight decreased with the collection time after increasing until May 12. Collection time showed high positive correlations (r=0.790, p<0.01) with seed size and negative correlations (r=-0.919, p<0.01) with moisture contents. Percent germination (PG) presented the highest value in seeds collected at May 5, and decreased with the collection time. Mean germination time(MGT), germination speed(GS), and germination performance index(GPI) also showed the highest values in seeds collected at May 5. PG, MGT, and GS had correlations with other seed characteristics except the 1,000 seed weight. The relative growth rate of height and root collar diameter of seedlings presented the highest values in seedling germinated from seed collected at May 5, and seedlings germinated from seeds collected at May 5 and 12 showed the highest values in chlorophyll contents. Consequently it will be possible to product a number of seedlings when the seeds of U. davidiana var. japonica are collected just before drying morphologically.

A Study on the Seed Characteristics and Germination Percent of Several Native Herb Species (자생 초본류 몇 종의 종자특성과 발아율에 대한 연구)

  • 김갑태
    • Korean Journal of Environment and Ecology
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    • v.18 no.1
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    • pp.1-6
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    • 2004
  • Seed characteristics-weight, seed length and width, pure seed percentage are measured on 15 native herb species, and seeds of six native herb species were tested on the seedbed in the forest with autumn seeding. Seeds of 13 species including Aster scaber were very small; seed length is less than 7mm and seed width is less than 3mm pure seed percentages of 10 native herb speciesin-cluding Ligularia fischeriwere were much lower than 5%. Germination percent of five native herb species were significantly different among the growing sites. The mean germination percent was highest 47.00% for Angelica gigas, 38.25% for Ligularia fischeri, 30.88% for PimPinella brachycarpa, 15.75% for Aralia continetalis, 10.00% for Cirsium setidens, and the lowest 9.32% for Aster scaber.

A Comparison of the Manufacturing and Quality Characteristics of Gluten-free Noodles using Guar Gum and Basil (Ocimum basilicum L.) Seed Gum (구아검 및 바질검 첨가 Gluten-free 생면의 제조 및 품질 특성 비교)

  • Song, Ka-Young;O, Hyeonbin;Joung, Ki Youeng;Shin, So Yeon;Kim, Young-Soon
    • Culinary science and hospitality research
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    • v.23 no.4
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    • pp.116-124
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    • 2017
  • This study was investigated quality characteristics of gluten-free noodles added guar gum and basil seed gum (BSG). Gluten-free noodles were prepared using corn flour and corn starch and added 1% and 2% of guar gum and basil seed gum. Water binding capacity was measured by centrifuge, and moisture content was obtained by moisture analyzer. Color of noodles was measured from the midsection of noodles. Water absorption of noodles was calculated by weight of uncooked and cooked noodles. pH of noodles was measured by pH meter. Texture and tensile strength were obtained by rheometer. SPSS 12.0 program was used for significant differences by Duncan's multiple range test. Water binding capacity of noodles was the highest in 2% basil seed gum but 1% guar gum was the lowest. Moisture content was not different in uncooked noodles, but 1% guar had the highest moisture content in cooked noodles. Water absorption of noodles was high in basil seed gum group. pH of noodles was more increased in guar gum additions than basil seed gum additions. For hardness, control had the lowest as 16.09 N, but 2% guar gum showed the highest as 28.40 N. Tensile strength of noodles was increased by adding gums. These results suggested that 1% basil seed gum could be good materials for manufacturing gluten-free noodles in order to improve quality characteristics.