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[期刊论文]

Improving viscosity and gelling properties of leaf pectin by comparing five pectin extraction methods using green tea leaf as a model material

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author:

Zhang, Chen (Zhang, Chen.) [1] (Scholars:张晨) | Zhu, Xiuxiu (Zhu, Xiuxiu.) [2] | Zhang, Feipeng (Zhang, Feipeng.) [3] | Unfold

Indexed by:

CPCI-S Scopus SCIE

Abstract:

Leaf pectin product has a great potential in food market; however, due to the low extraction efficiency and poor pectin properties, its applications are limited. To obtain high yield leaf pectin with better viscosity and gelling properties, five pectin extraction methods, including hydrothermal, acidic, alkaline, Viscozyme (R) L and FoodPro (R) CBL extraction were compared using green tea leaf as model material. The results showed that alkaline extract had the highest pectin yield (9.2%) with galacturonic acid content of 41.6%, suggesting high content of homogalacturonan pectin. Its average molecular weight and particle size were 3.34 x 10(5) Da and 296 nm. The alkaline extract showed a strong shear thinning property with a viscosity of about 90 mPas, which was four times as those of other leaf pectin extracts. Its gel rigidity was similar as that of acidic extract, which were about 10 times as those of other pectin solution including commercial citrus pectin. It was deduced that the viscosity of pectin extract was influenced by both HG pectin content and the formation of large polymers, while the gelling property was mainly influenced by the formation of large polymers. Although Viscozyme (R) L extract also had a high yield (8.5%), the high contents of rhamnogalacturonan I & rhamnogalacturonan II pectin and the hydrolysis of the side chains resulted in poor viscosity and gelling properties.

Keyword:

Acid Alkaline Cellulase Hydrothermal Leaf pectin

Community:

  • [ 1 ] [Zhang, Chen]Fuzhou Univ, Inst Food Sci & Technol, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Zhu, Xiuxiu]Fuzhou Univ, Inst Food Sci & Technol, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Zhang, Feipeng]Fuzhou Univ, Inst Food Sci & Technol, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Yang, Xin]Fuzhou Univ, Inst Food Sci & Technol, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Ni, Li]Fuzhou Univ, Inst Food Sci & Technol, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 6 ] [Zhang, Wen]Fuzhou Univ, Inst Food Sci & Technol, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 7 ] [Liu, Zhibin]Fuzhou Univ, Inst Food Sci & Technol, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 8 ] [Zhang, Chen]Fujian Ctr Excellence Food Biotechnol, Fuzhou 350108, Fujian, Peoples R China
  • [ 9 ] [Zhang, Wen]Fujian Ctr Excellence Food Biotechnol, Fuzhou 350108, Fujian, Peoples R China
  • [ 10 ] [Liu, Zhibin]Fujian Ctr Excellence Food Biotechnol, Fuzhou 350108, Fujian, Peoples R China
  • [ 11 ] [Zhang, Yanyan]Univ Hohenheim, Inst Food Sci & Biotechnol, Dept Flavor Chem, Fruwirthstr 12, D-70599 Stuttgart, Germany

Reprint 's Address:

  • 刘志彬

    [Liu, Zhibin]Fuzhou Univ, Inst Food Sci & Technol, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China

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Source :

FOOD HYDROCOLLOIDS

ISSN: 0268-005X

Year: 2020

Volume: 98

9 . 1 4 7

JCR@2020

1 1 . 0 0 0

JCR@2023

ESI Discipline: AGRICULTURAL SCIENCES;

ESI HC Threshold:116

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 59

SCOPUS Cited Count: 73

30 Days PV: 2

Online/Total:169/10267759
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