IP Library › Granted Patent US 8,852,459
Granted Patent B2
US 8,852,459 · App. 13/981,030 · Granted Oct 7, 2014

Polyphenol increasing agent for harvested tea leaves, resin pellet, harvested tea leaf storage sheet and manufacturing method therefor

Inventor: Minoru Kanno (Sendai, JP)
A23L3/3562A23F3/06A23B7/154A23L3/3544A23V2002/00
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Quick Facts
Patent No.
US 8,852,459
App. No.
13/981,030
Granted
Oct 7, 2014
Kind
B2
Abstract

A polyphenol increasing agent for plant leaves, a polyphenol and amino acid increasing agent for plant leaves, a resin pellet, a plant leaf storage sheet, and a method for manufacturing a plant leaf storage sheet which can improve the storability of the plant leaves such as leafy vegetables and tea leaves are provided. A polyphenol increasing agent for plant leaves includes proanthocyanidins and trehalose. The polyphenol increasing agent for plant leaves preferably includes proanthocyanidins and trehalose at a weight ratio of 1:15 to 1:60. A plant leaf storage sheet includes the polyphenol increasing agent for plant leaves.

Claims (12)

1. A resin pellet for manufacturing a harvested tea leaf storage sheet, comprising a polyphenol increasing agent for harvested tea leaves, the polyphenol increasing agent comprising proanthocyanidins and trehalose.

2. The resin pellet according to claim 1 , wherein the polyphenol increasing agent comprises the proanthocyanidins and the trehalose at a weight ratio of 1:15 to 1:60.

3. A harvested tea leaf storage sheet, wherein the harvested tea leaf storage sheet is produced by processing the resin pellet according to claim 1 into a sheet.

4. A method for manufacturing a harvested tea leaf storage sheet, comprising:

melting the resin pellet according to claim 1 at a temperature of 150 to 200° C.; and subsequently

processing the resin pellet into a sheet having a thickness of 20 to 50 μm.

5. A resin pellet for manufacturing a harvested tea leaf storage sheet, comprising a polyphenol and amino acid increasing agent for harvested tea leaves, the polyphenol and amino acid increasing agent comprising proanthocyanidins and trehalose.

6. The resin pellet according to claim 5 , wherein the polyphenol and amino acid increasing agent comprises proanthocyanidins and the trehalose at a weight ratio of 1:15 to 1:60.

7. A harvested tea leaf storage sheet, wherein the harvested tea leaf storage sheet is produced by processing the resin pellet according to claim 5 into a sheet.

8. A method for manufacturing a harvested tea leaf storage sheet, comprising:

melting the resin pellet according to claim 5 at a temperature of 150 to 200° C.; and subsequently

processing the resin pellet into a sheet having a thickness of 20 to 50 μm.

Priority Claims (1)
JP 2011-080379 · Mar 31, 2011 · national
Continuity (1)
Related Publication 20130299746A1 · Nov 14, 2013