Dissertation > Excellent graduate degree dissertation topics show

Effect of Different Drip Irrigation Regimes on Edible Quality and Antioxidant of Loess Plateau Pear-Jujube

Author: YuJinGang
Tutor: WangMin
School: Northwest University of Science and Technology
Course: Of Food Science
Keywords: Loess Plateau Lizao Antioxidant capacity Phenolic acids Organic acids
CLC: S665.1
Type: Master's thesis
Year: 2011
Downloads: 38
Quote: 0
Read: Download Dissertation

Abstract


Jujube (Zizyphus Mill) is used along with the fruit of our traditional food and medicine, originated in the Yellow River, in China more than two thousand years of cultural history, Lizao (Zizyphus jujuba Mill.cv.Lizao) is a fresh varieties of jujube fresh Lizao a large, crisp, delicious, rich in vitamins, minerals and phenols. Loess Plateau due to excessive deforestation caused serious soil erosion and ecological environment has been enormous damage, with the implementation of the policy of the National Grain for Green \combination for the region's ecological restoration and economic afforestation. Purpose for the Loess Plateau Lizao planting water-saving, high-yield, high-quality, efficient \fruit as test materials, as a control, irrigation treatment of jujube compare three drip irrigation system each period (Lizao growth period is divided into budding leaf expansion, flowering and fruiting stage, the stage of fruit enlargement, fruit maturity, T1 process: irrigation 6m3/666.67m ~ 2; T2 processing: each period irrigation once per irrigation 9m3/666.67m ~ 2; T3 treatment: fruit enlargement of irrigation twice irrigation time, every time, and each other during the time per irrigation 12m3/666.67m ~ 2) edible quality of Lizao, total phenol, flavonoid content, phenolic acids and organic acids composition and antioxidant capacity, including anti-linoleic acid peroxidation, reducing power, DPPH radical scavenging rate and ABTS free base clearance. Come to the following conclusions: (1) three drip irrigation system of the Loess Plateau Lizao water content, the pH, reduced Vc content did not significantly influence; between the Lizao of different drip irrigation system titratable acidity, soluble solids, reducing sugar and total sugar content there is a significant difference; the Lizao texture analysis only Lizao hardness and resilience by drip irrigation system. (2) in the study design, drip irrigation system, Lizao total phenolic content no significant difference between the the Lizao flavonoid content and Lizao of antioxidant capacity (four models) there is a significant difference (P lt; 0.05). Have a higher correlation between the Lizao anti-oxidative capacity (four models) Lizao flavonoid content. (3) HPLC analysis Lizao Lizao contain protocatechuic acid, catechin, epicatechin and rutin polyphenols and tartaric acid, citric, Vc and Apple acids such as organic acids, and at the same time catechu significantly affect prime, epicatechin, rutin, and tartaric acid content by the drip irrigation system.

Related Dissertations

  1. Effect of Soil Erosion on Soil Quality in the Cultivated Slope Land on the Loess Plateau, China,S157.1
  2. Effects of Low Molecular Organic Acids on Immobilazition of Lead Ions by Nanosized Hydroxyapatite,S153
  3. Effects of Pre-Anthesis Waterlogging Hardening on Grain Yield and Quality Formation in Wheat under Post-Anthesis Waterlogging and Its Physiological Mechanism,S512.1
  4. Preliminary Study of CoenzymeQ10 on Renal Protection to Avian Gout,S858.31
  5. Effects of Allelochemicals from Watermelon and Rice Root Exudates on Fusarium Wilt of Watermelon,S436.5
  6. Study on the Change of Organic Acid and Regulation of Metabolizing Enzyme in Post-harvest Huangguan Pear Fruit,S661.2
  7. Study on Extraction、 Separation and Identification of Polyphenol from Camphor Tree Leaves,TQ914.1
  8. Mechanisms Involved in Lmwoas-Caused Inhibition on Ferrous Iron Oxidation by Acidithiobacillus Ferrooxidans,X703
  9. Studies on Water and Soil Conservation in Lvliang Mountain Area during the Period of Collectivization,S157
  10. Candy orange and red orange fruit ripening changes of sugar and acid content,S666
  11. The Effect of pH on the Fermentation for VFAs with Food Waste and Excess Sludge and the Biosynthesis of Polyhydroxyalkanoate with Fermentation Liquid,X792
  12. Evaluation of Intensive Land Use in Loess Plateau,F224
  13. The Research on Enriched Selenium Pear Vinegar,TS264.22
  14. Application of Pulsed Electric Fields on Milk Sterilization and Its Effect on Milk Fat,TS252.2
  15. Low molecular weight organic acids biodegradable sustained release of artificial roots,S157
  16. The Research of Methods of Synthetical Pigments in Cake、 Organic Acids in Cider and Aristolochic Acid A in Chinese Traditional Patent-medicine by HPLC(MS),R155.5
  17. Analysis and Antioxidant Activity of Different Extracts from Wheat Bran,R151
  18. The Research of Phenolic Compounds and Antioxidant Capacity in Brewing Barley and Malt,TS262.5
  19. Effects of Reduced Glutathione, α-Lipoic Acid and the Interaction between Selenium and Glutathione, Selenium and α-Lipoic Acid on Growth and Antioxidation in Japanese Flounder (Paralichthys Olivaceus),S963.1
  20. The Effect of Different Organic Acid on Rumen Fermentation,S826
  21. Effect of Bacillus Subtilis on the Growth Performance of Broilers and Its Approach to the Mechanism,S831.5

CLC: > Agricultural Sciences > Gardening > Fruit trees gardening > Miscellaneous fruit > Date
© 2012 www.DissertationTopic.Net  Mobile