Production of reducing sugar in Gracilaria verrucosa using physio-chemical pretreatment and subsequent enzymatic hydrolysis

Park, Mi‐Ra; Jeong, Gwi‐Taek

doi:10.1016/j.algal.2021.102531

Cited by 11 publications

(2 citation statements)

References 32 publications

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“…Enzymatic hydrolysis of U. fasciata macroalgae yielded maximum reducing sugar levels of 1.61 g/L at 6 h hydrolysis time [ 47 ]. Reducing sugar production in Gracilaria verrucosa macroalgae was achieved via ultrasonication with an acid catalyst followed by enzymatic hydrolysis [ 48 ]. Maximum reducing sugar content was achieved with extreme extraction or hydrolyses at high temperatures using acidic solutions and mechanical-assisted techniques.…”

Section: Discussionmentioning

confidence: 99%

Extraction, Characterisation and Evaluation of Antioxidant and Probiotic Growth Potential of Water-Soluble Polysaccharides from Ulva rigida Macroalgae

Phomkaivon,

Pongponpai,

Kosawatpat

et al. 2024

Foods

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Ulva rigida green macroalgae contain a variety of polysaccharides. A recent study investigated the optimum concentration and yield of polysaccharide extraction from oven-dried U. rigida biomass using a water-soluble polysaccharide extraction method that adhered to safety standards. This study utilised complete factorial experiments to examine the effects of varying factors on polysaccharide extraction. Results showed a positive correlation between increased levels of all factors and higher polysaccharide extraction yield. This study also found that the main factors and their interaction had a significant impact on the extracted polysaccharides from U. rigida. The highest polysaccharide content and yield were 9.5 mg/mL and 189 mg/g, respectively. Water-soluble polysaccharides demonstrated the presence of reducing sugar (8 mg/g), phenolics (0.69 mg/g) and flavonoids (1.42 mg/g) and exhibited antioxidant properties. Results revealed that freeze-dried polysaccharide powders were primarily composed of the monosaccharide rhamnose. Preliminary results on the effect of these powders on probiotics demonstrated that supplementation of polysaccharides from U. rigida promoted viable Lactobacillus rhamnosus ATCC 53103 growth during cultivation. This discovery has the potential to revolutionise the human food industry and promote the development of functional ingredients for novel and future food products, with numerous applications in the nutraceutical and pharmaceutical industries.

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Section: Discussionmentioning

confidence: 99%

Extraction, Characterisation and Evaluation of Antioxidant and Probiotic Growth Potential of Water-Soluble Polysaccharides from Ulva rigida Macroalgae

Phomkaivon,

Pongponpai,

Kosawatpat

et al. 2024

Foods

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“…It is probably influenced by the type of acid catalyst used, which is a weak acid. Where [5] reported that the use of acetic acid in the hydrolysis process to obtain reducing sugars produced a much lower total sugar than that of a sulfuric acid catalyst. Using an acetic acid catalyst might cause the termination of the polymer chain not to occur completely.…”

Section: Fig1 the Effect Of Concentration Of Acetic Acid (%) On The R...mentioning

confidence: 99%

Hydrolysis of starch from various tuber using acetic acid as an alternative sugar

et al. 2022

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In the beginning, tubers have only known as a source of starch. But later on, the existence of process innovation acquaints the other product from the tuber, such as liquid sugar. In this research, tubers such as ganyong, suweg, uwi, talas, and gembili were analyzed to know its potential as being material for a sugar alternative. The process included starch production and hydrolysis using an acid catalyst. Then sugar content and density were analysed using the Luff-Schoorl and pycnometer respectively. The results showed that the highest reducing sugar content was 2.8598% which was obtained in ganyong with 6% acetic acid catalyst. The lowest sugar content was obtained in the gembili sample (0.4816%) with the addition of an acetic acid catalyst of 2%. Besides, this research confirmed that the higher concentration of the acid catalyst, the higher the reducing content in sugar alternative from tubers.

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Biochemical Conversion of Algae Biomass: Enzymatic Hydrolysis and Fermentation

Medeiros,

Ferro,

Santos

et al. 2024

Value Added Products From Bioalgae Based Biorefineries: Opportunities and Challenges

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Production of reducing sugar in Gracilaria verrucosa using physio-chemical pretreatment and subsequent enzymatic hydrolysis

Cited by 11 publications

References 32 publications

Extraction, Characterisation and Evaluation of Antioxidant and Probiotic Growth Potential of Water-Soluble Polysaccharides from Ulva rigida Macroalgae

Extraction, Characterisation and Evaluation of Antioxidant and Probiotic Growth Potential of Water-Soluble Polysaccharides from Ulva rigida Macroalgae

Hydrolysis of starch from various tuber using acetic acid as an alternative sugar

Biochemical Conversion of Algae Biomass: Enzymatic Hydrolysis and Fermentation

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