Sustainable Production of Biosurfactants Using Waste Substrates

Mulligan, Catherine N.

doi:10.1007/978-3-031-21682-4_3

Cited by 8 publications

(11 citation statements)

References 101 publications

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“…Enhanced sustainability of rhamnolipid and sophorolipid biosurfactant production has been attempted by employing second-generation feedstocks [ 59 , 60 , 61 , 62 ], specifically industrial residual biomass waste streams such as sunflower oil, waste fried oil, jatropha oil, and animal fat (as hydrophobic substrates), and sugarcane molasses, soy molasses, glycerol (as hydrophilic substrates), and food waste. In this scenario, municipal unsorted food waste (MBW) and its anaerobic digestates are the most sustainable waste materials to use as potential waste feedstock.…”

Section: Discussionmentioning

confidence: 99%

A Low-Cost Ecofriendly Oxidation Process to Manufacture High-Performance Polymeric Biosurfactants Derived from Municipal Biowaste

Padoan,

Contillo,

Marafante

et al. 2024

Polymers

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Biosurfactants account for about 12% of the global value of the surfactant market, which is currently dominated by synthetic surfactants obtained from fossil sources. Yet, the production of biosurfactants from renewable feedstock is bound to increase, driven by the increasing pressure from both society and governments for chemistry-based industries to become more ecofriendly and economically sustainable. A photo-chemical oxidation process is reported here, yielding new biosurfactants from urban biowaste in water that perform as a solvent and terminal oxidant reagent at room temperature without the addition of conventional oxidants and catalysts. Products with 200–500 kDa molecular weight are obtained. They lower the surface tension of water down to 34 mN/m at 0.5–2 g/L concentration. The estimated cost is rather low (0.1–1.5 EUR/kg), which is competitive with the cost of synthetic surfactants but much lower than the cost of the best-performing bacterial surfactants. For the implementation of the photo-chemical oxidation process at the industrial level, the results suggest that the new biosurfactants obtained in the present work may not reach the performance level of the best-performing bacterial surfactants capable of lowering the surface tension of water down to 28 mN/m. Yet, the biosurfactants produced by the photo-chemical process have a greater chance of being marketed on large scales.

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Section: Discussionmentioning

confidence: 99%

A Low-Cost Ecofriendly Oxidation Process to Manufacture High-Performance Polymeric Biosurfactants Derived from Municipal Biowaste

Padoan,

Contillo,

Marafante

et al. 2024

Polymers

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“…However, innovative techniques now exist which utilize microbial cells for the biodegradation of organic matter in effluents, resulting in the production of a range of premium products, such as biobased zwitterionic biosurfactants. For instance, Pseudomonas aeruginosa has been shown to produce biosurfactants, including rhamnolipid and sophorolipid, as well as biodiesel generation through lipase and liquid hydrocarbon biofuels [40,41]. Waste from the edible oil industry, such as tocopherols, sterols, and squalene, are now extracted and used as raw materials in various industries, including the production of single-cell oil/protein for food [42], as well as in medicinal formulations and cosmetics in the form of soap stalk [43].…”

Section: Edible Oilmentioning

confidence: 99%

“…FW is abundant, inexpensive, and contains rich nutritional substances that can support microbial growth and biosynthesis. It has been shown that FW performs well in the production of rhamnolipid and sophorolipid biosurfactants (over 100 g/L) because of their easy degradation and high nutrient content [41]. Kopsahelis et al carried out a life cycle assessment to examine the production of glycolipid biosurfactants using waste oil, with a comparison of the yields of rhamnolipids and sophorolipids.…”

Section: Biosurfactantsmentioning

confidence: 99%

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Valorization of Food Waste to Produce Value-Added Products Based on Its Bioactive Compounds

et al. 2023

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The rapid growth of the global population and changes in lifestyle have led to a significant increase in food waste from various industrial, agricultural, and household sources. Nearly one-third of the food produced annually is wasted, resulting in severe resource depletion. Food waste contains rich organic matter, which, if not managed properly, can pose a serious threat to the environment and human health, making the proper disposal of food waste an urgent global issue. However, various types of food waste, such as waste from fruit, vegetables, grains, and other food production and processing, contain important bioactive compounds, such as polyphenols, dietary fiber, proteins, lipids, vitamins, organic acids, and minerals, some of which are found in greater quantities in the discarded parts than in the parts accepted by the market. These bioactive compounds offer the potential to convert food waste into value-added products, and fields including nutritional foods, bioplastics, bioenergy, biosurfactants, biofertilizers, and single cell proteins have welcomed food waste as a novel source. This review reveals the latest insights into the various sources of food waste and the potential of utilizing bioactive compounds to convert it into value-added products, thus enhancing people’s confidence in better utilizing and managing food waste.

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“…These compounds are produced as secondary metabolites by various bacteria, fungi, and yeasts (Sharma et al, 2021), and some can be produced from plants or animals. Five main categories of biosurfactants have been defined, presented in Figure 3, and are based on the structures of the hydrophilic head groups found in the compounds (Mulligan & Gibbs, 2004). While these main classifications are useful, there is additional complexity in biosurfactant structures—specifically, the hydrophobic fatty acid tail can be of variable length, giving rise to a set of congeners: structurally similar biosurfactants, with slightly differing properties.…”

Section: Microbial Biosurfactantsmentioning

confidence: 99%

A review on the upstream production and downstream purification of mannosylerythritol lipids

Valkenburg,

Ncube,

Teke

et al. 2023

Biotech & Bioengineering

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Biosurfactants are natural compounds with remarkable surface‐active properties that may offer an eco‐friendly alternative to conventional surfactants. Among them, mannosylerythritol lipids (MELs) stand out as an intriguing example of a glycolipid biosurfactant. MELs have been used in a variety of sectors for various applications, and are currently commercially produced. Industrially, they are used in the pharmaceutical, cosmetic, food, and agricultural industries, based on their ability to reduce surface tension and enhance emulsification. However, despite their utility, their production is comparatively limited industrially. From a bioprocessing standpoint, two areas of interest to improve the production process are upstream production and downstream (separation and purification) product recovery. The former has seen a significant amount of research, with researchers investigating several production factors: the microbial species or strain employed, the producing media composition, and the production strategy implemented. Improvement and optimization of these are key to scale‐up the production of MELs. On the other hand, the latter has seen comparatively limited work presented in the literature. For the most part traditional separation techniques have been employed. This systematic review presents the production and purification methodologies used by researchers by comprehensively analyzing the current state‐of‐the‐art with regards the production, separation, and purification of MELs. By doing so, the review presents different possible approaches, and highlights some potential areas for future work by identifying opportunities for the commercialization of MELs.

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Sustainable Production of Biosurfactants Using Waste Substrates

Cited by 8 publications

References 101 publications

A Low-Cost Ecofriendly Oxidation Process to Manufacture High-Performance Polymeric Biosurfactants Derived from Municipal Biowaste

A Low-Cost Ecofriendly Oxidation Process to Manufacture High-Performance Polymeric Biosurfactants Derived from Municipal Biowaste

Valorization of Food Waste to Produce Value-Added Products Based on Its Bioactive Compounds

A review on the upstream production and downstream purification of mannosylerythritol lipids

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