Production of <scp>L</scp>(+)‐lactic acid from glucose and starch by immobilized cells of <i>Rhizopus oryzae</i> in a rotating fibrous bed bioreactor

Tay, Abdullatif; Yang, Shang‐Tian

doi:10.1002/bit.10340

Cited by 156 publications

(97 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Lactic acid production decreases as medium pH decreases from 6.0 to 4.0. Therefore, neutralizing agents such as calcium carbonate (CaCO 3 ) are added into fermentation medium in order to prevent excessive pH drifts during lactic acid production [22][23][24].…”

Section: Effect Of Calcium Carbonate On L-lactic Acid Synthesis and Cmentioning

confidence: 99%

L‐lactic acid production by Rhizopus oryzae MBG‐10 using starch‐rich waste loquat kernels as substrate

et al. 2012

View full text Add to dashboard Cite

The objective of this work was to perform production of L-lactic acid from starch-rich waste loquat kernels by newly isolated Rhizopus oryzae MBG-10 fungus. Loquat kernel flour (LKF) was used as substrate (mainly as carbon source). The most favorable conditions for L-lactic acid production were LKF concentration of 80 g/L, CaCO 3 concentration of 20 g/L, ammonium sulfate concentration of 3 g/L and incubation time of 108 h. Under these conditions, L-lactic acid and biomass concentrations were 45.4 and 8.2 g/L, respectively, and a-amylase activity was 81.6 U/mL. No significant pH changes were observed in the medium thanks to the buffering capacity of LKF. L-lactic acid could be produced in a single-stage from starch-rich LKF without prior saccharification by the fungus with high amylolytic enzyme activity. This is the first report on use of waste loquat kernels as a lactic acid production substrate.

show abstract

Section: Effect Of Calcium Carbonate On L-lactic Acid Synthesis and Cmentioning

confidence: 99%

L‐lactic acid production by Rhizopus oryzae MBG‐10 using starch‐rich waste loquat kernels as substrate

et al. 2012

View full text Add to dashboard Cite

show abstract

“…have been common among the bacterial cultures (John et al 2007a) and that of Rhizopus sp. among the fungal cultures (Tay and Yang 2002;Koutinas et al 2007).…”

Section: Bioproducts Bioethanolmentioning

confidence: 97%

Cellulose from Lignocellulosic Waste

et al. 2014

View full text Add to dashboard Cite

Bioconversion of renewable lignocellulosic biomass to biofuel and value-added products is globally gaining significant importance. Lignocellulosic wastes are the most promising feedstock considering its great availability and low cost. Biomass conversion process involves mainly two steps: hydrolysis of cellulose in the lignocellulosic biomass to produce reducing sugars and fermentation of the sugars to ethanol and other bioproducts. However, sugars necessary for fermentation are trapped inside the recalcitrant structure of the lignocellulose. Hence, pretreatment of lignocellulosic wastes is always necessary to alter and/or remove the surrounding matrix of lignin and hemicellulose in order to improve the hydrolysis of cellulose. These pretreatments cause physical and/or chemical changes in the plant biomass in order to achieve this result. Each pretreatment has a specific effect on the cellulose, hemicellulose, and lignin fraction. Thus, the pretreatment methods and conditions should be chosen according to the process configuration selected for the subsequent hydrolysis steps. In general, pretreatment methods can be classified into four categories, including physical, physicochemical, chemical, and biological pretreatment. This chapter addresses different pretreatment technologies envisaging enzymatic hydrolysis and microbial fermentation for cellulosic ethanol production and other bioproducts. It primarily covers the structure of lignocellulosic wastes; the characteristics of different pretreatment methods; enzymatic hydrolysis; fermentation and bioproducts; and future research challenges and trends.

show abstract

“…[13,16]. Rhyzopus orizae, one species of fungi, showed its capability to produce lactic acid [17,18]. From table 3, the capability of microorganisms is not same and they are not always having similar optimum conditions.…”

Section: Lactic Acid Productionmentioning

confidence: 99%

Lactic acid production from date juice usinglactobacillus casei ATCC 393in batch fermentation

Kaavessina

Khanifatun²,

Al‐Zahrani

2017

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. Lactobacillus casei ATCC 393 was employed as a fermentative organism to convert sugars from date juice into lactic acid. Both glucose and fructose in date juice were fermented directly without any pretreatment. The influences of supplementation of yeast extract and date juice concentration on some fermentation parameters, such as: cell growth rate, sugar conversion, productivity and yield, were investigated using this bacterium in batch fermentation. The results showed that by adding yeast extract about 20g/l in a date juice medium, the maximum specific growth rate of bacteria (μ m ) enhanced from 0.1229 to 0.1819 g/l. Meanwhile, increasing date juice concentration from 86.6942 to 158.9181 and 229.5367 g/l enhanced the μ m from 0.1819 to 0.2107 and 0.1916 g/l, respectively. It indicated that the optimum value for μ m is 0.2107 g/l in this concentration range. In the date juice concentration of 158.9181 g/l, the optimum lactic acid can be produced is 117.8301 g/l with yield of 92.685% for 48 h.

show abstract

Production of L(+)‐lactic acid from glucose and starch by immobilized cells of Rhizopus oryzae in a rotating fibrous bed bioreactor

Cited by 156 publications

References 31 publications

L‐lactic acid production by Rhizopus oryzae MBG‐10 using starch‐rich waste loquat kernels as substrate

L‐lactic acid production by Rhizopus oryzae MBG‐10 using starch‐rich waste loquat kernels as substrate

Cellulose from Lignocellulosic Waste

Lactic acid production from date juice usinglactobacillus casei ATCC 393in batch fermentation

Contact Info

Product

Resources

About