Green process development for apple-peel pectin production by organic acid extraction

Cho, Eun-Hi; Jung, Ho-Tak; Lee, Byung‐Hoo; Kim, Hyun‐Seok; Rhee, Jin Kyu; Yoo, Sang‐Ho

doi:10.1016/j.carbpol.2018.09.086

Cited by 114 publications

(56 citation statements)

References 37 publications

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“…The molecular masses obtained for pectin and locust bean gum are within the normal range of molecular masses for both polymers [43,52]. These results indicate that the chitosan employed for the study was a low-molecular-weight chitosan [53] with a degree of deacetylation of (50.47–58.99)%.…”

Section: Resultsmentioning

confidence: 58%

Chitosan-Based Mucoadhesive Vaginal Tablets for Controlled Release of the Anti-HIV Drug Tenofovir

et al. 2019

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Vaginal microbicides have the potential to give women at high risk of contracting HIV the option of self-protection by preventing the sexual transmission of the virus. In this paper, mucoadhesive vaginal tablets based on chitosan, alone and in combination with pectin and locust bean gum, were developed for the sustained release of tenofovir (an antiretroviral drug). The formulations were placed in simulant vaginal fluid (SVF) to swell, and Hg porosity and SEM microscopy were used for the microstructural characterization of the swelling witnesses. The results show that the association of pectin and chitosan generated polyelectrolyte complexes and produced a robust system able to maintain its structure during the swelling process, when small pores are formed. Drug release and bovine vaginal mucoadhesion studies were performed in SVF showing that tenofovir-controlled dissolution profiles and adhesion to the mucosa were conditioned by the swelling processes of the polymer/s in each formulation. Tablets based on chitosan/pectin have the most homogeneous tenofovir dissolution profiles and last up to 96 h, remaining attached to the vaginal mucosa for the same period. These formulations can therefore be considered a good option for the self-protection of women from the sexual transmission of HIV.

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Section: Resultsmentioning

confidence: 58%

Chitosan-Based Mucoadhesive Vaginal Tablets for Controlled Release of the Anti-HIV Drug Tenofovir

et al. 2019

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“…Additionally, the extraction performed with citric acid as reported in this work could be considered more friendly to the environment and cheaper than other traditional extraction methods with sulfuric, hydrochloric or nitric acid due that is a less aggressive acid and comes from citrus fruits such as lemon, which makes it easy to obtain as well as biodegradable in the environment [11,18]. By the technological side, citric acid extraction of pectin has been reported to improve specific characteristics of the pectin such as molecular weight, viscosity and methoxy groups compared to pectin from the same source but extracted by different methods [19]. Organic acids like citric acid have a lower dissociation constant compared to mineral acids, so they have a lower hydrolyzing capacity and a lower depolymerization effect regardless of extraction performance.…”

Section: Pectin Extraction Yieldmentioning

confidence: 99%

“…Organic acids like citric acid have a lower dissociation constant compared to mineral acids, so they have a lower hydrolyzing capacity and a lower depolymerization effect regardless of extraction performance. Furthermore, the yield of pectin by acid extraction increases as the acid dissociation constant increases [19,42]. Therefore, the success of the extraction has been evaluated not only by the yield obtained but also by the characteristics of the pectin obtained.…”

Section: Pectin Extraction Yieldmentioning

confidence: 99%

“…sulfuric, hydrochloric and nitric acid), so in order to avoid environmental contamination, work has begun with other types of acids such as citric acid, which is more friendly to the environment [11,18]. Additionally, citric acid extraction has been reported to improve higher amount of methoxy groups, viscosity and molecular weight compared to other pectin from the same source but extracted with conventional methods [17,19]. Citric acid extraction has become more common in recent years for pectin obtention, due to the advantages reported.…”

Section: Introductionmentioning

confidence: 99%

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Pectin from Mangifera indica L. cv. Haden residues: Kinetic, thermodynamic, physicochemical, and economical characterization

Valdivia-Rivera¹,

Herrrera-Pool²,

Ayora-Talavera³

et al. 2021

Preprint

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The effect of temperature (60, 70, 80 and 90 ºC) and time (30, 45, 60, 75 and 90 min) on citric acid extraction of Haden mango ( Mangifera indica L . cv. Haden) peel pectin was evaluated in the present study. In order to obtain a better understanding of both the extraction process and the characteristics of the pectin (obtained from an agro-industrial waste) for a future scaling process, the following characterizations were performed: 1) Kinetic, with the maximum extraction times and yields at all evaluated temperatures; 2) thermodynamic, obtaining activation energies, enthalpies, entropies and Gibbs free energies for each stage of the process; 3) physicochemical (chemical analysis, monosaccharide composition, degree of esterification, galacturonic acid content, free acidity, Fourier-transform infrared spectroscopy, thermogravimetric and derivative thermogravimetric analyses) and; 4) economical, of the pectin with the highest yield. The mango Haden peel pectin was found to be characterized by a high-esterified degree (81.81 ± 0.00 %), regular galacturonic acid content (71.57 ± 1.26 %), low protein (0.83 ± 0.05 %) and high ash (3.53 ± 0.02 %) content, low mean viscometric molecular weight (55.91 kDa) and high equivalent weight (3657.55 ± 8.41), which makes it potentially useful for food, pharmaceutical and environmental applications such as delivery system, gelling agent or as an emulsifier.Statement of NoveltyThe novelty of this work lies in the valorization of an agro-industrial waste (Haden mango peel) through the kinetic, thermodynamic, physicochemical, and economic characterization of a product obtained (pectin). This work contributes to laying the groundwork for an industrial scale-up for pectin production in a mango processing industry.

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“…Not every company can afford the classic technology of pectin production, because there is a large amount of dangerous waste [6]. Recently, a trend towards the design of environmentally friendly production methods has become obvious in the development of pectin production technology [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Microwave Pre-processing Effect on Pectin Yield from Citrus Raw Material

Алексеев

Egorova

Егоров

2020

KLS

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The article describes a more environmentally friendly method to produce pectin compared to the classical acid scheme, which requires the use of strong mineral acids and toxic solvents. This method of obtaining pectin, like other analogs of the classical method, causes a decrease in the yield of the final product. This study aims to find ways of eliminating these barriers and increase the yield of pectin. The paper investigates the possibility to increase the yield of pectin obtained by acid hydrolysis applying citric acid through the use of preliminary microwave exposure to citrus raw materials. The work compares pectin quality indicators, such as the degree of esterification, molecular weight and gelation, for raw materials dried by the convective method and the combined method consisting of microwave pretreatment and blowing dry air. Curves of comparable pre-drying methods are presented. The rate of pectin yield at the stages of hydrolysis depending on the drying methods is analyzed. Optimal power modes for preliminary microwave drying of citrus raw materials are selected. The data obtained are valuable for both development and improvement of industrial technology of pectin production using environmental methods of extraction without the use of strong mineral acids to increase the yield and quality of pectin.

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Green process development for apple-peel pectin production by organic acid extraction

Cited by 114 publications

References 37 publications

Chitosan-Based Mucoadhesive Vaginal Tablets for Controlled Release of the Anti-HIV Drug Tenofovir

Chitosan-Based Mucoadhesive Vaginal Tablets for Controlled Release of the Anti-HIV Drug Tenofovir

Pectin from Mangifera indica L. cv. Haden residues: Kinetic, thermodynamic, physicochemical, and economical characterization

Microwave Pre-processing Effect on Pectin Yield from Citrus Raw Material

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