Comparative Studies of Combined Influence of Variables on the Esterification Degree of Pectin Extracted by Sulfuric Acid and Citric Acid

Li, Jun; Zhang, Ling; Li, Deqiang

doi:10.1155/2019/6313241

Cited by 5 publications

(2 citation statements)

References 45 publications

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“…Organic acids exhibit lower dissociation content that causes lower hydrolysis reaction, polymerization, and fragmentation ability than mineral acids. However, this result is consistent with the previous research on acid type effect to degree of esterification by Li et al (2019) that showed the DE of sugar beet pulp pectin extracted using mineral acid was higher than DE of pectin extracted by organic acid. As a weak acid, citric acid could provide more protons to improve the hydrolysis of methyl ester than mineral acid under the same pH.…”

Section: Effect Of Solvent Aciditysupporting

confidence: 93%

Response Surface Methodology for Simple Non-Acid Ultrasonic-Assisted Extraction of Pectin from Taiwan’s Citrus depressa H. Peels

Chien¹,

Saputri²,

Yanti³

et al. 2022

CMUJNS

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Exploration of pectin from Citrus depressa H. peels (CD pectin) could add value to the waste arising from Citrus depressa H. beverage products. Preliminary analysis showed that temperature and acidity were insignificantly affect pectin yield, degree of esterification and DPPH scavenging activity. In order to optimize the ultrasonication time and solid: solvent ratio (SLR) of CD pectin extraction, response surface methodology central composite design (RSM-CCD) was used as the statistical tool. The optimum UAE conditions were: extraction time 39.96 minutes and solid: iquid ratio 1:20 (w/v). Under these conditions, the pectin yield was 16.07%, with 83.49% DPPH scavenging activity and 62.46% degree of esterification. The prediction model with a 0.922 desirability value was verified with adequate “lack of fit” values and confirmed consistent response in high and low prediction intervals (95%). Titration analysis, FTIR-ATR, NMR and XRD spectroscopy had been done to the dried pectin, and found that CD pectin is considered as high methoxylated (DE > 50%) with amorphous and crystalline structures. CD pectin peel also exhibited high DPPH scavenging activity (74.14 – 83.56%) that the food industry could potentially use as natural antioxidants. Keywords: Ultrasonication, Pectin, Optimization, Structural, Functional

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Section: Effect Of Solvent Aciditysupporting

confidence: 93%

Response Surface Methodology for Simple Non-Acid Ultrasonic-Assisted Extraction of Pectin from Taiwan’s Citrus depressa H. Peels

Chien¹,

Saputri²,

Yanti³

et al. 2022

CMUJNS

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show abstract

“…In general, pectin extracted using sulphuric acid has a greater DE value than pectin extracted with citric acid. Under the same pH conditions, organic acid has a greater affinity for and contributes more protons to the pectin molecular chains than inorganic acid [50]. A study reported that alkaline extraction produced the largest pectin production, and the matching GalA [51].…”

Section: Recent Extraction Techniques Of Modified Pectinmentioning

confidence: 99%

Potential Biomedical Applications of Modified Pectin as a Delivery System for Bioactive Substances

Odun-Ayo

Reddy

2023

Polysaccharides

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Pectin is a polysaccharide that has been recently gaining attention because it is renewable, inexpensive, biocompatible, degradable, non-toxic, non-polluting, and has mechanical integrity. The recent extraction techniques and modification to the structural property of pectin have led to the modified pectin whose chemical and surface functional groups yield galacturonic acid and galactose contents which are primarily responsible for its improved and better use in biomedical applications including drug delivery and thus producing high-value products. Major attention on modified pectin has been focused on the aspect of its bioactive functionalities that opposes cancer development. Nevertheless, modified pectin can be combined with a wide range of biopolymers with unique characteristics and activities which thus enhances its application in different areas. This has enabled the current applications of modified pectin through different approaches in addition to the prominent anti-cancer functional capabilities, which were reviewed. Furthermore, this paper highlights the potential of modified pectin as a delivery system of bioactive substances, its synergistic and prebiotic effects, gut microbiota effect and antiviral properties amongst other roles applicable in the biomedical and pharmaceutical industries.

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Multi-objective optimization of pectin extraction from orange peel via response surface methodology: yield and degree of esterification

2022

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Comparative Studies of Combined Influence of Variables on the Esterification Degree of Pectin Extracted by Sulfuric Acid and Citric Acid

Cited by 5 publications

References 45 publications

Response Surface Methodology for Simple Non-Acid Ultrasonic-Assisted Extraction of Pectin from Taiwan’s Citrus depressa H. Peels

Response Surface Methodology for Simple Non-Acid Ultrasonic-Assisted Extraction of Pectin from Taiwan’s Citrus depressa H. Peels

Potential Biomedical Applications of Modified Pectin as a Delivery System for Bioactive Substances

Multi-objective optimization of pectin extraction from orange peel via response surface methodology: yield and degree of esterification

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