Chigen Tsukamoto
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View article: Molecular Characterization of an EMS-Induced Ab-γg-Rich Saponin Mutant in Soybean (Glycine max (L.) Merr.)
Molecular Characterization of an EMS-Induced Ab-γg-Rich Saponin Mutant in Soybean (Glycine max (L.) Merr.) Open
Soybean is particularly known for accumulating saponins in its seeds. This study aimed to identify a causal gene to control an increase in Ab-γg saponin in PE1607 from an EMS-treated population of the soybean cultivar Pungsannamul. Segrega…
View article: Genetic and Molecular Characterization of a New EMS-Induced Mutant without the Third Glucose Moiety at the C-3 Sugar Chain of Saponin in Glycine max (L.) Merr.
Genetic and Molecular Characterization of a New EMS-Induced Mutant without the Third Glucose Moiety at the C-3 Sugar Chain of Saponin in Glycine max (L.) Merr. Open
Saponin, a secondary metabolite, is produced by various plant species, including soybean (Glycine max (L.) Merr.). Soybeans synthesize triterpenoid saponins, which are classified by their aglycone structure and sugar chain composition. Her…
View article: Antioxidative Capacity of Soyfoods and Soy Active Compounds
Antioxidative Capacity of Soyfoods and Soy Active Compounds Open
Soyfood isoflavones and soyasaponins are effective compounds in terms of their health-promoting properties. Their chemical structure plays an important role in their antioxidative activity. Thus, six isoflavones and four soyasaponins that …
View article: Reconstruction of the Evolutionary Histories of UGT Gene Superfamily in Legumes Clarifies the Functional Divergence of Duplicates in Specialized Metabolism
Reconstruction of the Evolutionary Histories of UGT Gene Superfamily in Legumes Clarifies the Functional Divergence of Duplicates in Specialized Metabolism Open
Plant uridine 5′-diphosphate glycosyltransferases (UGTs) influence the physiochemical properties of several classes of specialized metabolites including triterpenoids via glycosylation. To uncover the evolutionary past of UGTs of soyasapon…
View article: Biosynthesis of <scp>DDMP</scp> saponins in soybean is regulated by a distinct <scp>UDP</scp>‐glycosyltransferase
Biosynthesis of <span>DDMP</span> saponins in soybean is regulated by a distinct <span>UDP</span>‐glycosyltransferase Open
Summary 2,3‐Dihydro‐2,5‐dihydroxy‐6‐methyl‐4 H ‐pyran‐4‐one ( DDMP ) saponins are one of the major saponin groups that are widely distributed in legumes such as pea, barrel medic, chickpea, and soybean. The steps involved in DDMP saponin b…
View article: Molecular elucidation of a new allelic variation at the Sg-5 gene associated with the absence of group A saponins in wild soybean
Molecular elucidation of a new allelic variation at the Sg-5 gene associated with the absence of group A saponins in wild soybean Open
In soybean, triterpenoid saponin is one of the major secondary metabolites and is further classified into group A and DDMP saponins. Although they have known health benefits for humans and animals, acetylation of group A saponins causes bi…
View article: Isolation and Characterization of the Soybean Sg-3 Gene that is Involved in Genetic Variation in Sugar Chain Composition at the C-3 Position in Soyasaponins
Isolation and Characterization of the Soybean Sg-3 Gene that is Involved in Genetic Variation in Sugar Chain Composition at the C-3 Position in Soyasaponins Open
Soyasaponins are specialized metabolites present in soybean seeds that affect the taste and quality of soy-based foods. The composition of the sugar chains attached to the aglycone moiety of soyasaponins is regulated by genetic loci such a…
View article: DPPH Radical Scavenging Activity and Polyphenols in the Pods of 3 Common Beans
DPPH Radical Scavenging Activity and Polyphenols in the Pods of 3 Common Beans Open
The pods of common beans (Phaseolus vulgaris) are rich in various nutrients, and they could therefore be important parts of the human diet. In the present study, we have analyzed the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging …
View article: Weeding volatiles reduce leaf and seed damage to field-grown soybeans and increase seed isoflavones
Weeding volatiles reduce leaf and seed damage to field-grown soybeans and increase seed isoflavones Open
View article: Effect of long-term soaking in water of soybean seeds on contents of functional and tasty ingredients
Effect of long-term soaking in water of soybean seeds on contents of functional and tasty ingredients Open
View article: Metabolic switching of astringent and beneficial triterpenoid saponins in soybean is achieved by a loss‐of‐function mutation in cytochrome P450 72A69
Metabolic switching of astringent and beneficial triterpenoid saponins in soybean is achieved by a loss‐of‐function mutation in cytochrome P450 72A69 Open
Summary Triterpenoid saponins are major components of secondary metabolites in soybean seeds and are divided into two groups: group A saponins, and 2,3‐dihydro‐2,5‐dihydroxy‐6‐methyl‐4 H ‐pyran‐4‐one ( DDMP ) saponins. The aglycone moiety …
View article: ACE and α-glucosidase Inhibitory Activity of the Glucosinolates in Dolsan Leaf Mustard Pickle during Storage
ACE and α-glucosidase Inhibitory Activity of the Glucosinolates in Dolsan Leaf Mustard Pickle during Storage Open
This study was carried out for investigate that physiological activity, quantification and qualitative were sinigrin of Dolsan leaf mustard pickle (DLMP) during storage. sinigrin contains high amounts of nutritional and medicinal compounds…
View article: Quality Characteristics of Dolsan Leaf Mustard according to Various Blanching Conditions and Liquid Chromatography with Photodiode Array and Tandem Mass Spectrometry Analysis
Quality Characteristics of Dolsan Leaf Mustard according to Various Blanching Conditions and Liquid Chromatography with Photodiode Array and Tandem Mass Spectrometry Analysis Open
This study aims to examine the optimum blanching conditions as a pretreatment condition to improve the storage stability of Dolsan leaf mustard pickle. The effects of the blan- ching temperature and time were investigated at a temperature …
View article: Inhibitory Effects of Soyasaponins on Antigen-induced Degranulation in RBL-2H3 Cells
Inhibitory Effects of Soyasaponins on Antigen-induced Degranulation in RBL-2H3 Cells Open
Soyasaponins are glycosylated, which gives rise to a wide diversity of structures and functions. We evaluated for inhibitory effects of 4 soyasaponins on antigen-induced degranulation in RBL-2H3 Cells. 4 soyasaponins had shown dose-depende…