Production of uronic acids by hydrothermolysis of pectin as a model substance for plant biomass waste

Pińkowska, Hanna; Krzywonos, Małgorzata; Wolak, Paweł; Złocińska, Adrianna

doi:10.1515/gps-2019-0039

Cited by 15 publications

(5 citation statements)

References 39 publications

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“…Under the condition of subcritical water, the high concentration of hydronium ion promoted the hydrolysis of pectin in lily bulb to uronic acid. It has been reported that the highest yield of uronic acid can reach 79.7 g kg –1 with subcritical water hydrolysis of pectin rich biomass ( 31 ).…”

Section: Resultsmentioning

confidence: 99%

Systematic evaluation on the physicochemical characteristics of a series polysaccharides extracted from different edible lilies by ultrasound and subcritical water

Song

Luo²,

Ti³

et al. 2022

Front. Nutr.

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A series polysaccharide samples extracted from three edible lilies (Lilium davidii var. willmottiae, Lilium brownii var. viridulum, and Lilium lancifolium) by subcritical water and ultrasound-assisted extraction were systematically compared. The results showed that extraction method was a more important factor than lily species. Subcritical water extracted lily polysaccharides (S-LP) with higher yield, molecular weight, neutral glucose and uronic acid content as well as apparent viscosity. Ultrasound-assisted extracted lily polysaccharides (U-LP) with higher reducing sugars and protein content. Moreover, due to the degradation of glycosidic bonds, ultrasonic extraction was easier to obtain lower molecular weight polysaccharides. In addition, the extraction method significantly affected the monosaccharide proportion of polysaccharides, but had no effect on type. Glucose was the main component in S-LP, and glucose and mannose were the main components in U-LP. The micromorphology of different polysaccharide samples was similar, and the scanning electron microscope (SEM) images showed regular/irregular particle clusters with different particle sizes. Overall, the relationships between extraction methods, lily species and polysaccharide properties were preliminarily elucidated, providing a reference for the targeted extraction of specific lily polysaccharides (LP).

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Section: Resultsmentioning

confidence: 99%

Systematic evaluation on the physicochemical characteristics of a series polysaccharides extracted from different edible lilies by ultrasound and subcritical water

Song

Luo²,

Ti³

et al. 2022

Front. Nutr.

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“…In a study on the hydrothermal production of uronic acids using pectin as a model substrate, Pińkowska et al. (2019) saw a decrease in uronic acid yield with increasing temperature, and their transformation into furfurals. Although hydrothermal treatment does not have the decompression impact that steam explosion has, Muzamal et al.…”

Section: Resultsmentioning

confidence: 99%

Pectic hydrocolloids from steam‐exploded lime pectin peel: Effect of temperature and time on macromolecular and functional properties

Cameron

Branca

Dorado

et al. 2021

Food Science & Nutrition

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Previously, we showed the weight average molecular weight (Mw) and intrinsic viscosity ([ƞ]) of pectic hydrocolloids recovered from steam‐exploded citrus peel were low, suggesting fragmentation due to process temperature and/or time‐at‐temperature. We have tested this hypothesis on a commercial lime pectin peel, washed to remove soluble sugars and dried for stabilization, using a static steam explosion system. We examined temperatures of 120–150°C at 1–3 min hold times. Galacturonic acid recovery and Mw ranged from 22% to 82% and 142–214 kDa, respectively. Recovery of most major pectic sugars increased concomitantly with galacturonic acid as temperature and time‐at‐temperature increased. [ƞ] ranged from 1.75 to 6.83 dl/g. The degree of methylesterification ranged from 66.5% to 72.1%. Tan (δ) (Loss modulus/Storage modulus; G″/G′) values of sugar–acid gels for 120–140°C treatments were <1.0. Ideal optimization analysis, where time, [ƞ], and percent recovery were maximized, identified processing conditions that favor either increased [ƞ] or percent recovery. The results presented here support our hypothesis that temperature and time‐at‐temperature affect Mw and [η] of the recovered pectic hydrocolloids. These results also demonstrate that manipulating either temperature or time‐at‐temperature enables the production of structurally varied populations of pectic hydrocolloids. Based on optimization analysis, commercially viable values of [ƞ] can be obtained while recovering approximately 50% of the pectic hydrocolloids.

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“…Uronic acids, especially D-galacturonic and D-glucuronic acids, are highly valuable chemicals used in the pharmaceutical, cosmetic, and food industries as antioxidants, as detoxifying and inactivating agents of various substances in the human body, ascorbic acid precursors, and chelating agents with anti-cancer properties. D-glucuronic acid is also used as a building block of hyaluronic acid and as a cosmetic ingredient in moisturizing and protective skincare cosmetic creams [ 35 ].…”

Section: Discussionmentioning

confidence: 99%

Study of the Polysaccharide Production by the Microalga Vischeria punctata in Relation to Cultivation Conditions

Babich

Budenkova

Kashirskikh

et al. 2022

Life

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Vischeria punctata is a unicellular microalga that has industrial potential, as it can produce substances with beneficial properties. Among them, endopolysaccharides (accumulated in cells) and exopolysaccharides (released by cells into the culture medium) are of particular interest. This study aimed to investigate the effect of nutrient medium composition on the growth of V. punctata biomass and the synthesis of polysaccharides by microalgae. The effect of modifying a standard nutrient medium and varying cultivation parameters (temperature, time, and extractant type) on the yield of exopolysaccharides produced by the microalgae V. punctate was investigated. The methods of spectrophotometry, ultrasonic extraction, and alcohol precipitation were used in the study. It was found that after 61 days of cultivation, the concentration of polysaccharides in the culture medium was statistically significantly higher (p < 0.05) when using a Prat nutrient medium (984.9 mg/g d.w.) than BBM 3N (63.0 mg/g d.w.). It was found that the increase in the V. punctata biomass when cultivated on different nutrient media did not differ significantly. The maximum biomass values on Prat and BBM 3N media were 1.101 mg/g d.w. and 1.120 mg/g d.w., respectively. Neutral sugars and uronic acids were found in the culture media. It follows on from the obtained data that the modified PratM medium was more efficient for extracting polysaccharides from V. punctata. The potential of microalgae as new sources of valuable chemicals (polysaccharides), which can be widely used in technologies for developing novel functional foods, biologically active food supplements, and pharmaceutical substances, was studied.

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Production of uronic acids by hydrothermolysis of pectin as a model substance for plant biomass waste

Cited by 15 publications

References 39 publications

Systematic evaluation on the physicochemical characteristics of a series polysaccharides extracted from different edible lilies by ultrasound and subcritical water

Systematic evaluation on the physicochemical characteristics of a series polysaccharides extracted from different edible lilies by ultrasound and subcritical water

Pectic hydrocolloids from steam‐exploded lime pectin peel: Effect of temperature and time on macromolecular and functional properties

Study of the Polysaccharide Production by the Microalga Vischeria punctata in Relation to Cultivation Conditions

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