A critical review on valorization of food processing wastes and by-products for pullulan production

Mishra, Bishwambhar; Mohanta, Yugal Kishore; Varjani, Sunita; Mandal, Sanjeeb Kumar; Lakshmayya, N. S. V.; Chaturvedi, Preeti; Awasthi, Mukesh Kumar; Zhang, Zengqiang; Sindhu, Raveendran; Singhania, Reeta Rani; Kumar, Vinod

doi:10.1007/s13197-022-05490-5

Cited by 9 publications

(1 citation statement)

References 46 publications

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“…Pullulan polysaccharides (pullulan, abbreviated PUL) is a natural linear biopolymer with excellent film-forming properties and is extensively used in developing food packaging materials. It has a chemical formula of (C 6 H 10 O 5 ) n and is mainly composed of α-(1, 6) glycosidic bond connection of malt trisaccharide units and is connected by a α-(1, 4) glycosidic bond of three malt trisaccharide of glucose units, with the characteristics of being non-toxic, non-mutagenic and -carcinogenic, biodegradable, and edible [33]. Moreover, it is a nonhygroscopic polymer with considerable intermolecular mechanical strength and processingfilm properties, which has a wide range of commercial and industrial applications in many fields, such as food science, healthcare, pharmaceuticals, and even in the field of lithography.…”

Section: Introductionmentioning

confidence: 99%

Study on Filtration Performance of PVDF/PUL Composite Air Filtration Membrane Based on Far-Field Electrospinning

et al. 2022

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At present, the situation of air pollution is still serious, and research on air filtration is still crucial. For the nanofiber air filtration membrane, the diameter, porosity, tensile strength, and hydrophilicity of the nanofiber will affect the filtration performance and stability. In this paper, based on the far-field electrospinning process and the performance effect mechanism of the stacked structure fiber membrane, nanofiber membrane was prepared by selecting the environmental protection, degradable and pollution-free natural polysaccharide biopolymer pullulan, and polyvinylidene fluoride polymer with strong hydrophobicity and high impact strength. By combining two kinds of fiber membranes with different fiber diameter and porosity, a three-layer composite nanofiber membrane with better hydrophobicity, higher tensile strength, smaller fiber diameter, and better filtration performance was prepared. Performance characterization showed that this three-layer composite nanofiber membrane had excellent air permeability and filtration efficiency, and the filtration efficiency of particles above PM 2.5 reached 99.9%. This study also provides important reference values for the preparation of high-efficiency composite nanofiber filtration membrane.

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Section: Introductionmentioning

confidence: 99%

Study on Filtration Performance of PVDF/PUL Composite Air Filtration Membrane Based on Far-Field Electrospinning

et al. 2022

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Progress in bioproduction, characterization and applications of pullulan: a review

Aquinas,

Chithra,

Bhat

2024

Polym. Bull.

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Pullulan is a biopolymer produced by various strains of the fungi Aureobasidium pullulans. It is made up of maltotriose units consisting of α-(1,6) and α-(1,4) glycosidic bonds. Pullulan was discovered by Bauer in 1938, characterized by Bernier in 1958 and named as ‘pullulan’ by Bender in 1959. Submerged fermentation is widely employed for pullulan production followed by downstream processing for recovery of pullulan. Factors such as nutrients, minerals, pH, temperature, surfactants, light intensity, and melanin intermediate affect its production. Various optimization methods such as Plackett Burman design, response surface methodology, and artificial neural networks have been utilised for enhancing the yield of pullulan. Pullulan yield as high as 62.52 g/L can be achieved using a 5 L fermenter under optimised conditions. It can be characterized by techniques such as nuclear magnetic resonance, Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy. The biopolymer has remarkable properties which makes it an ideal candidate to be used in various applications such as the biomedical and pharmaceutical sectors, cosmetics, food, and wastewater treatment. Pullulan’s applications can be expanded by chemically modifying to obtain grafted pullulan, polymer blends, nanocomposites and hydrogels which have been gaining importance in recent years. Over the years, many patents using pullulan have been granted for different applications worldwide. This review sheds light on all these aspects of pullulan including its future scope. Graphical abstract

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Co-production of Gluconic Acid and Fructo-oligosaccharides by Aureobasidium pullulans from Sugarcane Molasses: Effect of Oxygen Transfer Rate in Stirred Tank and Airlift Bioreactors

Fernandes,

Dias,

Gonçalves

et al. 2023

Food Bioprocess Technol

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Aureobasidium pullulans NCYC 4012 was used to produce gluconic acid (GA) and fructo-oligosaccharides (FOS) from sugarcane molasses (ScM). For the first time, three types of bioreactors operating at different conditions of oxygenation—a stirred tank reactor (STR) operating under atmospheric pressure varying stirring rate, a pressurized STR under increased air pressure up to 4 bar of air, and an airlift reactor under atmospheric pressure varying aeration rate—were employed for GA and FOS biosynthesis by A. pullulans. The highest oxygenation conditions favored GA production in the three bioreactors, whereas the synthesis of FOS was not favored by high oxygen availability. GA yields close to 1 g·g−1 (grams of GA produced per grams of glucose consumed) were achieved in bioreactors under atmospheric pressure, and the highest titer of GA of 75 g·L−1 was obtained in the airlift bioreactor. In this last, the highest concentration of total FOS of 65 g·L−1 and yield of FOS of 0.58 g·g−1 were obtained.

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A critical review on valorization of food processing wastes and by-products for pullulan production

Cited by 9 publications

References 46 publications

Study on Filtration Performance of PVDF/PUL Composite Air Filtration Membrane Based on Far-Field Electrospinning

Study on Filtration Performance of PVDF/PUL Composite Air Filtration Membrane Based on Far-Field Electrospinning

Progress in bioproduction, characterization and applications of pullulan: a review

Co-production of Gluconic Acid and Fructo-oligosaccharides by Aureobasidium pullulans from Sugarcane Molasses: Effect of Oxygen Transfer Rate in Stirred Tank and Airlift Bioreactors

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