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Author K. H. Dhakal |
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Refine your search Apply to external sourcesDistribution of isoflavone and pinitol content in different parts of Serica lespedeza / K. H. Dhakal in Journal of Agriculture and Forestry University, Volume 5 (2022)
Title : Distribution of isoflavone and pinitol content in different parts of Serica lespedeza Material Type: printed text Authors: K. H. Dhakal, Author Publication Date: 2022 Article on page: 115-123 p. Languages : English (eng) Keywords: Sericea lespedeza, isoflavone, pinitol Abstract: Isoflavone is an important functional component that is associated with human health benefits such as the
decreased risk of heart disease, menopausal symptoms, cardiovascular disease, and bone resorption as well as
breast, prostate, and colon cancers. Pinitol (also referred to as D-Pinitol) is a type of sugar and classified as a
chiro-inositol (sugar alcohol), has been demonstrated to exert insulin-like, anti-inflammatory and a hypoglycemic
effect (to reduce blood sugar level). Sericea lespedeza (Lespedeza cuneata) species were collected from the
different parts of Korea in the autumn season of 2011 and analyzed the isoflavone and pinitol content of leaves
and stems by High-Performance Liquid Chromatography (HPLC). A large variation of isoflavone and pinitol
content in the leaves and stems of lespedeza species was observed. The average isoflavone content of leaves and
stems were 1,612 and 873 µg/g and ranged from 44 ~ 6,536 and 25 ~ 3,666 µg/g, respectively. Similarly, the
average pinitol content of leaves and stems were 15,195 and 9,104 µg/g and ranged from 5,049 ~ 35,289 and 1284
~ 27,185 µg/g, respectively. Both isoflavone and pinitol content in the leaves were significantly higher than in the
stems. Leaves of sericea lespedeza showed unexpectedly higher isoflavone and pinitol. The average isoflavone
content in leaves and stems among nine provinces were also significantly different. The highest isoflavone content
in leaves (6,536 µg/g) and stems (3,666 µg/g) were measured in the samples collected from Chungcheongnam
and Gangwon provinces, respectively. Similarly, the highest pinitol content in the leaves (35,289 µg/g) and stems
(27,185 µg/g) were measured in the samples collected from Gyeonggi and Gangwon provinces, respectively.
The genotypes with high isoflavone and pinitol content especially in the leaves of this medicinal herb could be
used as elite genetic resources for food industries to make quality functional food products as well as medicines
especially for diabetesLink for e-copy: https://afu.edu.np/sites/default/files/Distribution_of_isoflavone_and_pinitol_co [...]
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 115-123 p.[article] Distribution of isoflavone and pinitol content in different parts of Serica lespedeza [printed text] / K. H. Dhakal, Author . - 2022 . - 115-123 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 115-123 p.
Keywords: Sericea lespedeza, isoflavone, pinitol Abstract: Isoflavone is an important functional component that is associated with human health benefits such as the
decreased risk of heart disease, menopausal symptoms, cardiovascular disease, and bone resorption as well as
breast, prostate, and colon cancers. Pinitol (also referred to as D-Pinitol) is a type of sugar and classified as a
chiro-inositol (sugar alcohol), has been demonstrated to exert insulin-like, anti-inflammatory and a hypoglycemic
effect (to reduce blood sugar level). Sericea lespedeza (Lespedeza cuneata) species were collected from the
different parts of Korea in the autumn season of 2011 and analyzed the isoflavone and pinitol content of leaves
and stems by High-Performance Liquid Chromatography (HPLC). A large variation of isoflavone and pinitol
content in the leaves and stems of lespedeza species was observed. The average isoflavone content of leaves and
stems were 1,612 and 873 µg/g and ranged from 44 ~ 6,536 and 25 ~ 3,666 µg/g, respectively. Similarly, the
average pinitol content of leaves and stems were 15,195 and 9,104 µg/g and ranged from 5,049 ~ 35,289 and 1284
~ 27,185 µg/g, respectively. Both isoflavone and pinitol content in the leaves were significantly higher than in the
stems. Leaves of sericea lespedeza showed unexpectedly higher isoflavone and pinitol. The average isoflavone
content in leaves and stems among nine provinces were also significantly different. The highest isoflavone content
in leaves (6,536 µg/g) and stems (3,666 µg/g) were measured in the samples collected from Chungcheongnam
and Gangwon provinces, respectively. Similarly, the highest pinitol content in the leaves (35,289 µg/g) and stems
(27,185 µg/g) were measured in the samples collected from Gyeonggi and Gangwon provinces, respectively.
The genotypes with high isoflavone and pinitol content especially in the leaves of this medicinal herb could be
used as elite genetic resources for food industries to make quality functional food products as well as medicines
especially for diabetesLink for e-copy: https://afu.edu.np/sites/default/files/Distribution_of_isoflavone_and_pinitol_co [...]
Title : Fatty acid composition of oil extracted from soybean seeds harvested at different days of reproductive stage | K. H. Dhakal Material Type: printed text Authors: K. H. Dhakal, Author Publication Date: 2020 Article on page: 37-42 p. Languages : English (eng) Keywords: Seed development, days after flowering, trait, accessions Abstract: Oil accumulation in soybean is considered as an important trait during seed development which is greatly valued in food, or
industrial application. An experiment was done to analyze fatty acid composition of soybean seed harvested at different stages
of reproductive period. Six soybean accessions with varied fatty acid composition were sown in two locations- Research field
of Kyungpook National University (KNU), and Chungpook National University (CNU), Korea, using four replications for
each treatment in both the sites. The pod samples were harvested at an interval of 10 days from the 45th day after flowering,
and sampling was continued up to the 75th day until the crop was matured. Fatty acid composition was analyzed by gas
chromatography. Significant variation in all five fatty acid compositions was observed among six accessions planted at both
locations, except for steric acid, planted at the Research field of CNU. All fatty acid composition was significantly different
with respect to the different days (45, 55, 65 and 75), planted in both locations. But, there was no significant interaction
found between accessions and days after flowering for both the locations. Among five fatty acids, mean palmitic, steric, and
linolenic acid was increased while oleic and linoleic acid was decreased as seed matured for both the locations. These findings
provide valuable information in selecting soybean varieties with desirable fatty acid composition to have healthy soybean oil,
especially when considered for cooking and industrial purposeLink for e-copy: https://afu.edu.np/sites/default/files/3._Fatty_acid_composition_of_oil_extracte [...]
in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 37-42 p.[article] Fatty acid composition of oil extracted from soybean seeds harvested at different days of reproductive stage | K. H. Dhakal [printed text] / K. H. Dhakal, Author . - 2020 . - 37-42 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 37-42 p.
Keywords: Seed development, days after flowering, trait, accessions Abstract: Oil accumulation in soybean is considered as an important trait during seed development which is greatly valued in food, or
industrial application. An experiment was done to analyze fatty acid composition of soybean seed harvested at different stages
of reproductive period. Six soybean accessions with varied fatty acid composition were sown in two locations- Research field
of Kyungpook National University (KNU), and Chungpook National University (CNU), Korea, using four replications for
each treatment in both the sites. The pod samples were harvested at an interval of 10 days from the 45th day after flowering,
and sampling was continued up to the 75th day until the crop was matured. Fatty acid composition was analyzed by gas
chromatography. Significant variation in all five fatty acid compositions was observed among six accessions planted at both
locations, except for steric acid, planted at the Research field of CNU. All fatty acid composition was significantly different
with respect to the different days (45, 55, 65 and 75), planted in both locations. But, there was no significant interaction
found between accessions and days after flowering for both the locations. Among five fatty acids, mean palmitic, steric, and
linolenic acid was increased while oleic and linoleic acid was decreased as seed matured for both the locations. These findings
provide valuable information in selecting soybean varieties with desirable fatty acid composition to have healthy soybean oil,
especially when considered for cooking and industrial purposeLink for e-copy: https://afu.edu.np/sites/default/files/3._Fatty_acid_composition_of_oil_extracte [...]
Title : Maize cultivation: present status, major constraints and farmer's perception at Madichaur, Rolpa Material Type: printed text Authors: S. Dhakal, Author ; Sanjit Kumar Saha, Author ; L. P. Amgain, Author ; K. H. Dhakal, Author Publication Date: 2022 Article on page: 125-131 p. Languages : English (eng) Keywords: Survey, productivity, rainfed maize Abstract: Maize (Zea mays) has been one of the most popularly grown crops in the mid hills of Nepal. With a view of
assessing the present agronomic management and constraints of maize cultivation, a field survey was carried
out in the summer of 2020 at Madichaur, Rolpa, Nepal. Simple random sampling procedure was used to collect
data from 100 respondents using a semi structured interview schedule. Information regarding the productivity
and adoption of improved technologies by maize growing farmers were also collected. The data were processed
and analyzed using MS-Excel and SPSS. Results revealed maize-based cropping system as the major cropping
system (65%) with rainy season maize being the dominant one (76%). Varietal selection was primarily based
on the local prevalence whereas own preserved seeds were used by majority of the respondents. Local plough
was the major tool for land preparation whereas majority of the respondent used FYM as nutrient source and
followed sowing behind the plough. Gap filling, thinning, weeding, earthing up was quite common among the
respondents, however their intensity varied. External cob storage was the common method of storage. Biotic
stress was identified as the major bottleneck for increasing maize productivity followed by lack of irrigation and
technical know how.Link for e-copy: https://afu.edu.np/sites/default/files/Maize_cultivation_present_status_major_co [...]
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 125-131 p.[article] Maize cultivation: present status, major constraints and farmer's perception at Madichaur, Rolpa [printed text] / S. Dhakal, Author ; Sanjit Kumar Saha, Author ; L. P. Amgain, Author ; K. H. Dhakal, Author . - 2022 . - 125-131 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 125-131 p.
Keywords: Survey, productivity, rainfed maize Abstract: Maize (Zea mays) has been one of the most popularly grown crops in the mid hills of Nepal. With a view of
assessing the present agronomic management and constraints of maize cultivation, a field survey was carried
out in the summer of 2020 at Madichaur, Rolpa, Nepal. Simple random sampling procedure was used to collect
data from 100 respondents using a semi structured interview schedule. Information regarding the productivity
and adoption of improved technologies by maize growing farmers were also collected. The data were processed
and analyzed using MS-Excel and SPSS. Results revealed maize-based cropping system as the major cropping
system (65%) with rainy season maize being the dominant one (76%). Varietal selection was primarily based
on the local prevalence whereas own preserved seeds were used by majority of the respondents. Local plough
was the major tool for land preparation whereas majority of the respondent used FYM as nutrient source and
followed sowing behind the plough. Gap filling, thinning, weeding, earthing up was quite common among the
respondents, however their intensity varied. External cob storage was the common method of storage. Biotic
stress was identified as the major bottleneck for increasing maize productivity followed by lack of irrigation and
technical know how.Link for e-copy: https://afu.edu.np/sites/default/files/Maize_cultivation_present_status_major_co [...]
