STUDIES ON THE POSSSIBLE INVOLVEMENT OF POLYAMINES IN THE SHELF LIFE OF GRAPES (VITIS VINIFERA L.)

2008 ◽  
pp. 457-464 ◽  
Author(s):  
Y. Narayana Reddy ◽  
V. Bhavani Shankar ◽  
V. Padmalatha
Keyword(s):  
Vitis Vinifera ◽  
Shelf Life ◽  
Vitis Vinifera L

scholarly journals Study of IBA Containing Rooting Powder on Root Induction Behavior of Hardwood Cutting of Grape (Vitis vinifera L.)

2021 ◽  
Author(s):  
Maninderdeep . ◽  
Gurpreet Singh
Keyword(s):  
Vitis Vinifera ◽  
Shelf Life ◽  
Butyric Acid ◽  
Vitis Vinifera L ◽  
Root Induction ◽  
Powder Form ◽  
Liquid Form ◽  
Indole Butyric Acid ◽  
Talcum Powder ◽  
Hardwood Cutting

Background: Grapes are mostly propagated by hardwood cutting. Most of the time, auxin (Indole Butyric Acid) is used in liquid form. There are some problems associated with using auxin in liquid form viz. cell sap may exude from cutting end on dipping in solution that may lead to contamination, every time auxin solution should be freshly prepared etc. In order to address these problems, auxin hormone is used in powder form by using Talcum powder. Methods: In the present investigation, rooting powders containing different concentration of auxin were tried for root induction behavior. Approximately 15-20 cm long and 1-1.5 cm thick hardwood cuttings of grapes were taken. Result: The results indicates that grape cuttings treated with Indole Butyric Acid @ 3000 ppm in powder form was found to be best for root induction behavior. However, in most of the cases observations were at par with Indole Butyric Acid @ 2000 ppm (powder form) and with treatment @ 2000 ppm in liquid form but if we consider other benefits like long shelf life, no contamination etc. It can be concluded the rooting hormone in powder form should be considered better alternative to liquid form for root induction.

scholarly journals Application of tamarind seed starch as edible coating in the post-harvest quality of grapes ‘Isabel’ (Vitis labrusca × Vitis vinifera L.)

2020 ◽  
pp. 953-958
Author(s):  
Bárbara Genilze Figueiredo Lima Santos ◽  
Albert Einstein Mathias de Medeiros Teodosio ◽  
Railene Hérica Carlos Rocha Araújo ◽  
Elny Alves Onias ◽  
Agda Malany Forte de Oliveira ◽  
...  
Keyword(s):  
Vitamin C ◽  
Vitis Vinifera ◽  
Shelf Life ◽  
Edible Coating ◽  
Soluble Solids ◽  
Vitis Vinifera L ◽  
Vitis Labrusca ◽  
Tamarind Seed ◽  
Quality Aspects

The Isabel grape (Vitis labrusca × Vitis vinifera L.) is the most produced grape in Brazil, however, it has a short postharvest period due to rapid degradation during storage. The use of coating has been an alternative to prolong the shelf-life of fruits. The objective of this work was to evaluate the postharvest quality of 'Isabel' grapes coated with tamarind (Tamarindus indica L.) seed starch. The experimental design was completely randomized with five treatments with edible coating based on tamarind seed starch, at concentrations of 0, 0.5, 1, 1.5 and 2% and five replications. The grapes were immersed in the solutions with different concentrations and stored in B.O.D. at 12 ± 2 ° C and 85 ± 5% relative humidity for 12 days. Weight loss, color, pH, soluble solids, total titratable acidity, relationship between soluble solids and acidity, anthocyanins, flavonoids and vitamin C were evaluated. The 2% coating of tamarind seed starch was the most efficient, providing shelf life in 12-day grapes when stored at 12 ± 2 ° C and 85 ± 5% RH, and maintaining the main quality aspects, with higher SS / TA ratio and vitamin C.

scholarly journals Application of a Multisystem Coating Based on Polymeric Nanocapsules Containing Essential Oil of Thymus Vulgaris L. to Increase the Shelf Life of Table Grapes (Vitis Vinifera L.)

2019 ◽  
Vol 18 (4) ◽  
pp. 549-557 ◽  
Author(s):  
Andres M. Pina-Barrera ◽  
Rocio Alvarez-Roman ◽  
Juan G. Baez-Gonzalez ◽  
Carlos A. Amaya-Guerra ◽  
Catalina Rivas-Morales ◽  
...  
Keyword(s):  
Essential Oil ◽  
Vitis Vinifera ◽  
Shelf Life ◽  
Thymus Vulgaris ◽  
Vitis Vinifera L ◽  
Table Grapes ◽  
Polymeric Nanocapsules

Resveratrol oligomers from Vitis Vinifera L. stems

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
H Amira-Guebailia ◽  
T Richard ◽  
S Rouaiguia ◽  
P Waffo Tueguo ◽  
JC Delaunay ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Vitis Vinifera L

Biotransformation of 4-hydroxybenzoic acid in the rhizosphere of grapevine (Vitis vinifera L.)

2017 ◽  
Vol 40 (1) ◽  
pp. 95-102 ◽  
Author(s):  
B. Wang ◽  
T. Zhou1 ◽  
K. Li ◽  
X.W. Guo ◽  
Y.S. Guo ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Vitis Vinifera L ◽  
Hydroxybenzoic Acid

Isolation and characterization of cell walls from the mesocarp of mature grape berries (Vitis vinifera)

2020 ◽  
Author(s):  
KJ Nunan ◽  
Ian Sims ◽  
A Bacic ◽  
SP Robinson ◽  
GB Fincher
Keyword(s):  
Vitis Vinifera ◽  
Cell Walls ◽  
Vascular Tissue ◽  
Compositional Analysis ◽  
Water Soluble ◽  
Vitis Vinifera L ◽  
Nylon Mesh ◽  
Cytoplasmic Material ◽  
Isolation And Characterization ◽  
Tissue Homogenates

Cell walls have been isolated from the mesocarp of mature grape (Vitis vinifera L.) berries. Tissue homogenates were suspended in 80% (v/v) ethanol to minimise the loss of water-soluble wall components and wet-sieved on nylon mesh to remove cytoplasmic material. The cell wall fragments retained on the sieve were subsequently treated with buffered phenol at pH 7.0, to inactivate any wall-bound enzymes and to dislodge small amounts of cytoplasmic proteins that adhered to the walls. Finally, the wall preparation was washed with chloroform/methanol (1:1, v/v) to remove lipids and dried by solvent exchange. Scanning electron microscopy showed that the wall preparation was essentially free of vascular tissue and adventitious protein of cytoplasmic origin. Compositional analysis showed that the walls consisted of approximately 90% by weight of polysaccharide and less than 10% protein. The protein component of the walls was shown to be rich in arginine and hydroxyproline residues. Cellulose and polygalacturonans were the major constituents, and each accounted for 30-40% by weight of the polysaccharide component of the walls. Substantial varietal differences were observed in the relative abundance of these two polysaccharides. Xyloglucans constituted approximately 10% of the polysaccharide fraction and the remainder was made up of smaller amounts of mannans, heteroxylans, arabinans and galactans.

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