Discoloration Mechanisms of Natural Rubber and Its Control

Color is an important indicator for evaluating the quality of natural rubber (NR). Light-colored standard rubbers are widely used in high-grade products and have high economic value. This paper first introduces the history and test standards of the standard light-colored rubber. The origin of color...

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Main Authors: Mingzhe Lv, Lei Fang, Heping Yu, Porntip Rojruthai, Jitladda Sakdapipanich
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/4/764
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author Mingzhe Lv
Lei Fang
Heping Yu
Porntip Rojruthai
Jitladda Sakdapipanich
author_facet Mingzhe Lv
Lei Fang
Heping Yu
Porntip Rojruthai
Jitladda Sakdapipanich
author_sort Mingzhe Lv
collection DOAJ
description Color is an important indicator for evaluating the quality of natural rubber (NR). Light-colored standard rubbers are widely used in high-grade products and have high economic value. This paper first introduces the history and test standards of the standard light-colored rubber. The origin of color deepening in NR processing, color substances, and its biosynthetic pathway are reviewed. Then, the discoloration mechanism of NR is studied from the perspectives of enzymatic browning (caused by polyphenol oxidase and polyphenols) and non-enzymatic browning (including Maillard reaction and lipid oxidation). Finally, the strategies to control the discoloration of NR will be described.
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spelling doaj.art-1e7f064e21374f4786e58f6be898195d2023-11-23T21:45:30ZengMDPI AGPolymers2073-43602022-02-0114476410.3390/polym14040764Discoloration Mechanisms of Natural Rubber and Its ControlMingzhe Lv0Lei Fang1Heping Yu2Porntip Rojruthai3Jitladda Sakdapipanich4Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Salaya Campus, Mahidol University, Phutthamonthon, Nakhon Pathom 73170, ThailandInstitute of Agricultural Product Processing Research, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, ChinaInstitute of Agricultural Product Processing Research, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, ChinaDivision of Chemical Industrial Process and Environment, Faculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong 21120, ThailandDepartment of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Salaya Campus, Mahidol University, Phutthamonthon, Nakhon Pathom 73170, ThailandColor is an important indicator for evaluating the quality of natural rubber (NR). Light-colored standard rubbers are widely used in high-grade products and have high economic value. This paper first introduces the history and test standards of the standard light-colored rubber. The origin of color deepening in NR processing, color substances, and its biosynthetic pathway are reviewed. Then, the discoloration mechanism of NR is studied from the perspectives of enzymatic browning (caused by polyphenol oxidase and polyphenols) and non-enzymatic browning (including Maillard reaction and lipid oxidation). Finally, the strategies to control the discoloration of NR will be described.https://www.mdpi.com/2073-4360/14/4/764natural rubberdiscolorationcolor substancesenzymatic browningpolyphenol oxidaseMaillard reaction
spellingShingle Mingzhe Lv
Lei Fang
Heping Yu
Porntip Rojruthai
Jitladda Sakdapipanich
Discoloration Mechanisms of Natural Rubber and Its Control
Polymers
natural rubber
discoloration
color substances
enzymatic browning
polyphenol oxidase
Maillard reaction
title Discoloration Mechanisms of Natural Rubber and Its Control
title_full Discoloration Mechanisms of Natural Rubber and Its Control
title_fullStr Discoloration Mechanisms of Natural Rubber and Its Control
title_full_unstemmed Discoloration Mechanisms of Natural Rubber and Its Control
title_short Discoloration Mechanisms of Natural Rubber and Its Control
title_sort discoloration mechanisms of natural rubber and its control
topic natural rubber
discoloration
color substances
enzymatic browning
polyphenol oxidase
Maillard reaction
url https://www.mdpi.com/2073-4360/14/4/764
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AT leifang discolorationmechanismsofnaturalrubberanditscontrol
AT hepingyu discolorationmechanismsofnaturalrubberanditscontrol
AT porntiprojruthai discolorationmechanismsofnaturalrubberanditscontrol
AT jitladdasakdapipanich discolorationmechanismsofnaturalrubberanditscontrol