Chestnut Shells as Waste Material for Succinic Acid Production from Actinobacillus succinogenes 130Z

Ventrone, Michela; Schiraldi, Chiara; Squillaci, Giuseppe; Morana, Alessandra; Cimini, Donatella

doi:10.3390/fermentation6040105

Cited by 6 publications

(3 citation statements)

References 28 publications

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“…Batch fermentations in controlled conditions on 1-liter reactors were performed with a concentration of total sugars ranging from 30 up to 80 g/l, reaching a maximum titer of about 37 g/l in the tank. The authors found that higher total carbon source concentrations decreased the acid by-product-to-SA ratio especially in the case of glucose-based fermentations (Stylianou et al, 2020), as previously observed for A. succinogenes (Ventrone et al, 2020).…”

Section: Waste Streamssupporting

confidence: 72%

Production of Succinic Acid From Basfia succiniciproducens

2021

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Basfia succiniciproducens is a facultative anaerobic capnophilic bacterium, isolated from rumen, that naturally produces high amounts of succinic acid by fixing CO2 and using fumarate as final electron acceptor. This metabolic feature makes it one of the ideal candidates for developing biotechnological industrial routes that could eventually replace the polluting and environment unfriendly petrochemical ones that are still main sources for the production of this value-added compound. In fact, due to the large number of applications of succinic acid that range from the more traditional ones as food additive or pharmaceutical intermediate to the most recent as building block for biopolymers and bioplastic, increasing demand and market size growth are expected in the next years. In line with a “green revolution” needed to preserve our environment, the great challenge is the establishment of commercially viable production processes that exploit renewable materials and in particular preferably non-food lignocellulosic biomasses and waste products. In this review, we describe the currently available literature concerning B. succiniciproducens since the strain was first isolated, focusing on the different renewable materials and fermentation strategies used to improve succinic acid production titers to date. Moreover, an insight into the metabolic engineering approaches and the key physiological characteristics of B. succiniciproducens deduced from the different studies are presented.

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Section: Waste Streamssupporting

confidence: 72%

Production of Succinic Acid From Basfia succiniciproducens

2021

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“…Citrus waste was pretreated with aqueous ammonia following the protocol described by Ventrone et al ( 2020 ). Briefly, dry biomass (5%) was incubated at 70 °C for 22 h in 10% (v/v) NH 4 OH.…”

Section: Methodsmentioning

confidence: 99%

Thermophilic biocatalysts for one-step conversion of citrus waste into lactic acid

Aulitto,

Alfano,

Maresca

et al. 2024

Appl Microbiol Biotechnol

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Agri-food residues offer significant potential as a raw material for the production of L-lactic acid through microbial fermentation. Weizmannia coagulans, previously known as Bacillus coagulans, is a spore-forming, lactic acid-producing, gram-positive, with known probiotic and prebiotic properties. This study aimed to evaluate the feasibility of utilizing untreated citrus waste as a sustainable feedstock for the production of L-lactic acid in a one-step process, by using the strain W. coagulans MA-13. By employing a thermophilic enzymatic cocktail (Cellic CTec2) in conjunction with the hydrolytic capabilities of MA-13, biomass degradation was enhanced by up to 62%. Moreover, batch and fed-batch fermentation experiments demonstrated the complete fermentation of glucose into L-lactic acid, achieving a concentration of up to 44.8 g/L. These results point to MA-13 as a microbial cell factory for one-step production of L-lactic acid, by combining cost-effective saccharification with MA-13 fermentative performance, on agri-food wastes. Moreover, the potential of this approach for sustainable valorization of agricultural waste streams is successfully proven. Key points • Valorization of citrus waste, an abundant residue in Mediterranean countries. • Sustainable production of the L-( +)-lactic acid in one-step process. • Enzymatic pretreatment is a valuable alternative to the use of chemical. Graphical Abstract

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“…(1) Alkaline hydrolysis: briefly, after size reduction in a benchtop grinder, dry biomass was dissolved in ammonium hydroxide (10% v/v) at 10% (w/v) solid loading and incubated at 70 • C for 22 h. The pH was adjusted to 7 with hydrochloric acid before biomass recovery by centrifugation and washing with water (twice). The supernatant was then discarded, and the pellet was placed in an oven at 70 • C for 24 h [26]. (2) Steam explosion (SE): the SE pre-treatment of grape stalks was conducted in a 1.5 L stirred-batch vessel made of AISI 316L.…”

Section: Biomass Pre-treatment and Hydrolysismentioning

confidence: 99%

Grape Stalk Valorization: An Efficient Re-Use of Lignocellulosic Biomass through Hydrolysis and Fermentation to Produce Lactic Acid from Lactobacillus rhamnosus IMC501

D’ambrosio,

Zaccariello,

Sadiq

et al. 2023

Fermentation

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Lactobacillus rhamnosus is a homofermentative probiotic strain that was previously demonstrated to grow on lignocellulosic-derived raw materials and to convert glucose into L-lactic acid (LA) with yields that vary between 0.38 and 0.97 g/g. Lactic acid is a key platform chemical, largely applied in different biotechnological fields (spanning from the pharmaceutical to the food sector) and also as a building block for the production of biodegradable polymers. In the present study, grape stalks were evaluated as sources of fermentable sugars for the growth of L. rhamnosus IMC501 and for the production of LA, since millions of hectoliters of wine are produced every year worldwide, generating a huge amount of waste. Although grape stalks are quite recalcitrant, the combination of a steam explosion pre-treatment with optimized two-step hydrolysis and commercial enzymes (Cellic-CTec2) allowed us to obtain a cellulose conversion efficiency of about 37% and to develop small-scale 2 L batch fermentation processes. Results successfully demonstrate that L. rhamnosus IMC501 can tolerate biomass-derived inhibitors and grow on grape stalk hydrolysate without the need for additional sources of nitrogen or other nutritional elements, and that the strain can convert all glucose present in the medium into LA, reaching the maximal theoretical yield.

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Chestnut Shells as Waste Material for Succinic Acid Production from Actinobacillus succinogenes 130Z

Cited by 6 publications

References 28 publications

Production of Succinic Acid From Basfia succiniciproducens

Production of Succinic Acid From Basfia succiniciproducens

Thermophilic biocatalysts for one-step conversion of citrus waste into lactic acid

Grape Stalk Valorization: An Efficient Re-Use of Lignocellulosic Biomass through Hydrolysis and Fermentation to Produce Lactic Acid from Lactobacillus rhamnosus IMC501

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