Download or read book Evaluation of Methods for Analysis of Tannins and Other Polyphenolic Compounds in Sorghum Bicolor L Moench Grain written by Erwin Daniel Maxson and published by . This book was released on 1971 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tannins and Tannin related Flavonoids in Grain Sorghum Sorghum Bicolor L Moench at Different Planting Dates and Stages of Growth written by Tajudeen A. Taiwo and published by . This book was released on 1978 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Tannin Content and Testa of Sorghum Bicolor L Moench Grain on Nutritional Quality written by Donn Paul Cummings and published by . This book was released on 1973 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Sorghum Type and Processing on the Antioxidant Properties of Sorghum sorghum Bicolor L Moench Based Foods written by Nomusa Rhoda Ngwenya and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidant properties of sorghum are related to sorghum type and method of processing into foods. Tannin and non-tannin sorghums and their products were evaluated for total phenols, tannins and antioxidant activity. Total phenols were determined using the Folin Ciocalteu method, and tannins were determined by the vanillin-HCl method. Antioxidant activity was evaluated using the ABTS (2,2'-azinobis(3-ethyl-benzothiazoline-6-sulphonic acid) and DPPH (2,2'-diphenyl-Ipicrylhydrazyl) assays. Tannin sorghums and their products had higher total phenols, tannins and antioxidant activity than non-tannin sorghum grain and products. Fermentation, extrusion cooking and porridge making reduced measurable phenols, tannins and in vitro antioxidant activity. Reduction was probably due to phenols binding to the food components, thus reducing their solubility in the extracting solvents; 1% HCl in methanol and 70% aqueous acetone. The procyanidin profile obtained using normal phase HPLC and fluorescent detection showed that extrusion cooking and porridge making lowered extractability of polymers (DP>8), while that of oligomers (DP 2-8) and monomers in porridges was not significantly changed. This indicated increased interactions of procyanidin polymers with the food matrix, especially with protein. Pepsin treatment of sorghum extrudates and porridges significantly improved the antioxidant activity and recovery. The highest antioxidant activity was in the supernatants of pepsin hydrolysates. Amylase treatment alone did not significantly affect phenol content and antioxidants, except in bread containing non-tannin white sorghum bran, where there was a slight increase in phenols. The combination of pepsin followed by amylase treatment of porridges and extrudates had effects similar to those of pepsin alone. Improved extractability of antioxidants on pepsin treatment was due to either the release of phenolic antioxidants or protein hydrolysates high in aromatic amino acid residues such as tyrosine, also known for their antioxidant activity. In either situation the improved antioxidant activity could mean that once food is digested it can potentially protect the gastrointestinal tract against oxidative stress generated from the diet and that produced by food interactions during digestion. There is scope to explore other biological methods like use of other proteases to improve antioxidant recovery. Further work would thus determine contribution of phenolic compounds to improved antioxidant activity, and also identify the phenolics.

Download or read book The Inheritance of Phenolic Compounds in Grain Sorghum Sorghum Bicolor L Moench written by Horacio Centron and published by . This book was released on 1972 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dietary Tannins written by D. K. Salunkhe and published by CRC Press. This book was released on 1989-11-30 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This concisely written book presents information on types of plant phenolics. The sole focus of this volume is on dietary tannins. It reviews the fact that tannins interact with dietary proteins, carbohydrates, minerals, vitamins, digestive enzymes, and lower nutrient availability. This work reveals that in certain parts of the world, tannins also have been reported as carcinogenic. This literature comprehensively reviews chemistry and plant biochemistry, and methods of extraction. It also explains the harmful and toxic effects and remedies to alleviate dietary tannins. This useful resource is a must for all food scientists, nutritionists, biochemists, and animal scientists throughout the world.

Download or read book Sorghum written by Zuo-Yu Zhao and published by Humana. This book was released on 2019-01-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book details sorghum breeding technologies, grain compounds, nutrition and digestibility, biotechnology methods, broad renewable applications and an economic study. Chapters are divided into five review chapters, five case study chapters, and nine protocol chapters providing comprehensive reviews, new study results or state-of-the-art protocols. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Sorghum: Methods and Protocols aims to provide useful information and tools to an array of readers looking to research and utilize sorghum.

Download or read book Plant Polyphenols written by Richard W. Hemingway and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1027 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was developed from the proceedings of the 2nd North American Tan nin Conference held in Houghton, Michigan, June, 1991. The objective of this con ference was to bring together people with a common interest in plant polyphenols and to promote interdisciplinary interactions that will lead to a bet ter understand ing of the importance of these substances. Another objective of this conference was to extend the 'tannin family' by making special efforts to encourage participation by scientists outside the United States, obtain more coverage of the hydrolyzable tannins, and further broaden the scope of coverage from the initial concentration on forestry and forest products. Com parison of the contents of this book with 'Chemistry and Significance of Condensed Tannins' that resulted from the proceedings of the 1st North American Tannin Conference shows the degree that these objectives were met. In developing the second conference, care was taken to assure that this book extends rather than duplicates the coverage of the first conference. Therefore, the two books should be taken together to obtain an up to date coverage of the broad area of chemistry and significance of plant polyphenols. Our thanks go to the authors who so kindly contributed chapters and so pa tiently responded to our requests. We thank the Conference Assistance Staff of Michigan Technological University for their help in planning and conducting the conference.

Download or read book The Relation Between Sorghum Tannins and Nutritive Value of the Grain written by Erwin Daniel Maxson and published by . This book was released on 1973 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Chemical Composition and Nutritional Value of Low and High Polyphenolic Sorghums Sorghum Bicolor L Moench for Tribolium Castaneum Larvae and Chickens written by Drinah Buthu Grace Banda-Nyirenda and published by . This book was released on 1984 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Morphological Characteristics Affecting Tannin in Grain Sorghum Sorghum Bicolor L Moench Improvement written by Mohamed M K. El Tuhami and published by . This book was released on 1978 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Sorghum Sorghum Bicolor L Moench Phenolic Compounds on Starch Digestibility of Porridges written by Dilek Austin and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two tannin sorghums, (high-tannin, black with tannin), high anthocyanin sorghum (black), and non-tannin sorghum (white) were used to investigate the effects of sorghum phenolic compounds on in vitro starch digestibility, estimated glycemic indices (EGI) and resistant starch contents (RS) of porridges. Sorghum varieties were chosen to have a wide range of total phenols (3-23 mg/g gallic acid) and tannin contents (0-34 mg catechin eq./g). Normal corn starch, enzyme resistant high amylose corn starch, and whole sorghum grains were cooked with the aqueous fraction of sorghum bran extracts obtained with 70% aqueous acetone. Endosperms of soft and hard sorghum varieties were mixed with sorghum brans and cooked into porridges with distilled water. Hi-tannin, black and black with tannin sorghum bran extracts significantly (p

Download or read book Toxicants of Plant Origin written by Peter R. Cheeke and published by CRC Press. This book was released on 1989-07-31 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive treatise offers an in-depth discussion of natural toxicants in plants, emphasizing their effects as defenses against herbivory. Coevolution of plants and her-bivores are covered with a detailed treatment of toxicant metabolism and systemic effects in mammalian tissues. Con-sideration of the economic importance of plant toxins, modi-fication by plant breeding, management of toxico-sis, and toxicant problems in various geographic areas are in-cluded. Each volume offers an extensive description of chemistry, biosynthesis, analysis, distribution in plants, metabolism in mam-mals and insects, and practical problems in humans and livestock.

Download or read book Faculty Publications written by Texas A & M University and published by . This book was released on 1970 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantification of Tannins in Tree and Shrub Foliage written by Harinder P.S. Makkar and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is the most complete guide available for the analysis of tannins. A battery of tannin methodologies is presented in a simple, clear and easy-to-understand manner. This unique guide covers chemical, biological and radio isotopic tannin assays. Comprehensive step-by-step protocols are presented for each method. The protocols enable non-specialists and specialists alike to implement the methods easily in the laboratory. It is an ideal laboratory manual for research scientists, graduate students, and laboratory personnel working in the fields of animal nutrition, soil nutrient management, wild life-plant interactions, and plant breeding.

Download or read book Identification of Two Interacting Quantitative Trait Loci Controlling for Condensed Tannin in Sorghum Grain and Grain Quality Analysis of a Sorghum Diverse Collection written by Wenwen Xiang and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Tannin, a second metabolic product in sorghum, has been directly related to resistance to insects and birds. Tannin also impacts sorghum nutritional value. Previous studies have shown tannin content has a positive correlation with early season cold tolerance, an important agronomic trait. Sorghum contains condensed tannins in testa layer below the pericarp. The testa layer tannin is controlled by two complementary genes B1 and B2: tannins are present when both genes are dominant but absent when only one or none of these two is dominant. The purpose of this research is to identify and map QTLs associated with the presence of condensed tannins, analyze interaction of QTLs, and provide a potential path to dissect the more complex trait of early season cold tolerance in future studies. A population of 109 F6:7 recombinant inbred lines (RILs) developed from the cross of a high tannin sorghum Shan Qui Red (SQR) and non-tannin line Tx430 was used in the mapping study. Two QTLs related to condense tannin presence in testa layer were mapped to chromosome 2 and 4, respectively. Strong epistatic interaction of these two QTLs was detected. The two QTLs together with their interaction explained 74% of the phenotypic variation. Sorghum grain quality traits, including kernel size, kernel hardness, protein and starch content, are complex traits which are directly related to sorghum nutritional value and market value. Association mapping is a promising method for complex quantitative traits analysis and dissection in plant science. Sorghum grain quality trait association analysis research is purposed to analyze large amount of grain quality data based on a diversity panel. A sorghum bicolor panel of 300 lines including germplasm derived from sorghum conversion program and elite commercial lines were established and served as diversity population for the association study. Phenotypic data of grain quality traits were collected by single kernel characterization system (SKCS) and near infrared reflectance spectroscopy (NIRS). Data analysis proved high diversity within the SB panel. A correlation between tannin presence and kernel hardness was also observed. Quality traits showed high consistence across years and environments.

Download or read book Determination Variation Nutritional Value and Inheritance of Tannins in Sorghum Sorghum Bicolor L Moench Forage written by Mark F. Walton and published by . This book was released on 1979 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: