Article
Microbiology
Gheorghe-Adrian Martau, Peter Unger, Roland Schneider, Joachim Venus, Dan Cristian Vodnar, Jose Pablo Lopez-Gomez
Summary: Solid state fermentation (SsF) is an effective method for enzyme production using organic residues. This study demonstrated the feasibility of using enzymes produced via SsF for subsequent hydrolysis and production of target compounds through submerged-liquid fermentations (SmF). The combination of SsF and SmF technologies showed promising results in valorizing wheat bran and organic fraction of municipal solid waste.
Article
Food Science & Technology
Sanju Bala Dhull, Sneh Punia, Rajesh Kumar, Manoj Kumar, Kiran Bala Nain, Kanchan Jangra, Chanchal Chudamani
Summary: This study investigated the effect of solid-state fermentation using Aspergillus awamori on four fenugreek cultivars, showing significant increases in antioxidant properties and bioactive compounds on the 5th day of fermentation. Additionally, mineral content and bioavailability in the fermented samples were found to be enhanced compared to unfermented samples. The results may contribute to the development of new health foods and functional ingredients in the food industry.
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
(2021)
Article
Food Science & Technology
J. Y. Mendez-Carmona, Karen N. Ramirez-Guzman, Juan A. Ascacio-Valdes, Leonardo Sepulveda, Cristobal N. Aguilar
Summary: In this study, solid-state fermentation with Aspergillus niger GH1 was used to extract and recover carotenoids from tomato waste. The optimal conditions for the process were determined, and the results showed a significant increase in the carotenoid content after 36 hours of fermentation. This approach has potential applications in carotenoid extraction and recovery.
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
(2022)
Article
Agriculture, Multidisciplinary
Xuyan Zong, Wenli Luo, Lei Wen, Shujuan Shao, Li Li
Summary: Microcapsule beads (M-B) prepared based on microcapsule emulsion were added to solve the problem of reduced activity of glucoamylase in the late stage of solid-state fermentation of Baijiu. The results showed that M-B had a release rate of 53.27% and 25.77% in the liquid state (120 h) and 29.84% and 22.62% in the solid state (15 days) before and after drying, respectively. Adding M-B increased the alcohol content by 0.33 %vol, reduced the reducing sugar content by 0.51%, and decreased the residual starch content of Jiupei by 1.21%, with insignificant effects on moisture and acidity of the Jiupei.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Agricultural Engineering
Cristina Marzo-Gago, Peter Unger, Roland Schneider, Joachim Venus, Jose Pablo Lopez-Gomez
Summary: This study utilized wheat bran for solid-state fermentation to produce amylase, and successfully achieved high lactic acid yield through hydrolysis and fermentation at a pilot scale using a home-designed reactor. After purification, a high lactic acid recovery rate was obtained.
BIORESOURCE TECHNOLOGY
(2024)
Article
Chemistry, Multidisciplinary
T. Chandukishore, Satwika Das, K. Narasimhulu, Ashish A. Prabhu
Summary: This study investigated the hydrolysis potential of fungal enzymes for food waste. The fungal strain Aspergillus terreus showed a high glucoamylase enzyme production rate and its activity was enhanced through random mutagenesis. Metal ions and incubation temperature were found to affect the enzyme activity. Statistical tools and artificial neural network linked genetic algorithm were used to optimize the hydrolysis rate and glucose release. The mutated strain produced glucose and other organic compounds at high concentrations.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Microbiology
Laila Naher, Siti Noor Fatin, Md Abdul Halim Sheikh, Lateef Adebola Azeez, Shaiquzzaman Siddiquee, Norhafizah Md Zain, Sarker Mohammad Rezaul Karim
Summary: Fungi play important roles in various sectors, with the isolation of potential fungal species being crucial for their utilization. This study isolated filamentous fungi from soil and weed leaves and evaluated their cellulase enzyme production capabilities. Results showed that Trichoderma reesei produced a significantly higher amount of cellulase compared to Aspergillus awamori.
Article
Chemistry, Physical
Canto-Robertos Manuel, Quintal-Franco Carlos, Ponce-Caballero Carmen, Vega-De Lille Marisela, Moreno-Andrade Ivan
Summary: The dark fermentation process for biohydrogen production from food waste through fungal solid-state fermentation (SSF) was evaluated. The results showed that Aspergillus tubingensis was the best hydrolysis culture, and the hydrogen yield of food waste hydrolysate (FWH) at different substrate-inoculum ratios was lower than that of untreated food waste (RFW). The microbial community analysis revealed the presence of lactic-acid bacteria genera such as Latilactobacillus and Leuconostoc. The presence of actively growing bacteria during SSF could explain the lower hydrogen yield in the FWH treatment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Biotechnology & Applied Microbiology
Cristina Agabo-Garcia, Luis Romero-Garcia, Carlos J. Alvarez-Gallego, Ana Blandino
Summary: Rugulopteryx okamurae, an invasive brown alga, is causing serious environmental and economic problems on the western Mediterranean coasts. This study aims to convert this waste into monosaccharides through a two-stage sequential process, which can be used for the production of high-value-added bioproducts. The best conditions tested include 5 days of biological pretreatment of the seaweed with the fungus Aspergillus awamori, followed by enzymatic hydrolysis with a commercial enzyme cocktail for 24 hours, resulting in the production of around 240 g of total reducing sugars per kg of dried biomass. The main sugars obtained were glucose (95.8%), mannitol (1.5%), galactose (1%), arabinose (0.9%), and fucose (0.5%).
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Rodrigo Lira de Oliveira, Emiliana de Souza Claudino, Attilio Converti, Tatiana Souza Porto
Summary: This study developed a novel sequential fermentation method to produce protease using wheat bran as a substrate, resulting in a significant increase in protease activity. Optimization of glucose concentration and medium volume led to a maximum protease activity of 180.17 U mL(-1).
Article
Environmental Sciences
Gislaine Brito Santos, Alvaro de Sousa Francisco Filho, Jacqueline Rego da Silva Rodrigues, Roberto Rodrigues de Souza
Summary: Cellulases are widely used in various industries for the degradation of cellulose, with the aim of recovering high value products. This study focused on efficient and cost-effective production of cellulases using urban lignocellulosic waste, showing promising results in enzyme production and sustainability.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Biotechnology & Applied Microbiology
Shoaib Hasan, Zahid Anwar, Waseem Khalid, Fareed Afzal, Muddassar Zafar, Usman Ali, Mohammed Y. Refai, Mohamed Afifi, Ammar AL-Farga, Moneera O. Aljobair
Summary: In this study, fungal laccase was produced, purified, and optimized using solid-state fermentation with Aspergillus niger. Wheat straw provided the highest laccase activity, and the purified enzyme showed highest activity at 45℃ and pH 5.5. The results demonstrated the economical and environmentally friendly production of laccase by A. niger, which has unique oxidative and catalytic features.
FERMENTATION-BASEL
(2023)
Review
Microbiology
Kei Hayashi, Yasuhiro Kajiwara, Taiki Futagami, Masatoshi Goto, Hideharu Takashita
Summary: Honkaku shochu is a traditional Japanese single distilled liquor made using local agricultural products and designated ingredients, utilizing black or white koji fungus to saccharify starch and produce citric acid. Through unique temperature control methods, the balance of important elements is ensured to produce high-quality shochu.
Article
Biotechnology & Applied Microbiology
Su Jeong Lee, Han Byul Kang, Sun Hee Kim, Woo Soo Jeong, So-Yeong Kim, Soo-Hwan Yeo
Summary: The implementation of the 'Nagoya Protocol' has incentivized efforts to secure useful biological resources globally, including the generation of royalties on the use of foreign-made inoculum strains or starters. In this study, the importance of securing useful strains in Korea was recognized, and starters were produced using specific fungi strains. The analysis focused on the quality characteristics of the starters, such as enzyme activity and flavor compound content, under different inoculum concentrations and drying conditions, aiming to provide foundational data for the production of Korean-type starters.
FERMENTATION-BASEL
(2023)
Article
Biotechnology & Applied Microbiology
Ricky Wang, Rebecca Gmoser, Mohammad J. Taherzadeh, Patrik R. Lennartsson
Summary: Stale bread, a major food waste, was successfully converted into new food products through solid-state fermentation using a plug-flow bioreactor, showing improved productivity compared to batch fermentation. By adjusting residence time and inoculum-to-substrate ratio, the fermentation performance could be effectively controlled, leading to reduced starch content in the substrate.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Beilei Wei, Yunchang Peng, Paramsothy Jeyakumar, Longxin Lin, Dongliang Zhang, Meiyan Yang, Jinning Zhu, Carol Sze Ki Lin, Hailong Wang, Ziting Wang, Chong Li
Summary: Soil acidification is the main cause of soil cadmium pollution exacerbation. Biochar treatment can increase soil pH and decrease the availability of cadmium. This study evaluated the response of cadmium fractions to biochar application in soils with different pH and assessed the effect of biochar's physicochemical properties on cadmium. The results showed that biochar treatment increased soil pH and decreased available cadmium. The effectiveness of biochar varied depending on the soil pH, with different fractions of cadmium being affected differently. The findings provide key information for the remediation of cadmium pollution in soils with different pH using biochar.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Shauhrat Singh Chopra, Liang Dong, Guneet Kaur, Christophe Len, Carol Sze Ki Lin
Summary: Textile waste is a global concern and valorising it into value-added products is crucial to divert it from landfills. Rapid innovation in valorisation technologies for different textiles and blends is promising. However, benchmarking and comparing these technologies is essential before scaling up to fit the local circular economy. This article emphasizes the use of life cycle assessment to evaluate the environmental, social, and economic implications for selecting appropriate textile waste valorisation pathways based on waste stream and local demand.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Engineering, Environmental
Eleni Stylianou, Jose M. Carvajal-Arroyo, Dimitrios Ladakis, Carol Sze Ki Lin, Vera Essmann, Sebastin Dorr, Jakob Marbach, Korneel Rabaey, Apostolis Koutinas, Chrysanthi Pateraki
Summary: A novel electrochemical membrane bioreactor (EMB) integrating succinic acid (SA) production and in situ separation was used with hydrolysates from the organic fraction of municipal solid waste (OFMSW) as feedstock. The fermentation process was optimized to achieve high SA productivity and efficiency, and the SA crystals were successfully purified for further applications. Scale-up of the process was influenced by yeast cell viability, cell design, and EMB configuration. Overall, this study demonstrated the potential of the EMB system for sustainable SA production and purification.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Muhammad Ahmar Siddiqui, Sumate Chaiprapat, Carol Sze Ki Lin, Guanghao Chen
Summary: A side-stream cross-flow anaerobic self-forming dynamic membrane bioreactor (AnSFDMBR) was used in the sulfate reduction, autotrophic denitrification, and nitrification integrated (SANI) process, replacing UASB and middle settling tank. The optimum condition for trans-membrane pressure (TMP)-based backwashing was investigated, and the AnSFDMBR operated continuously for 243 days with good effluent quality. EPS accumulation was minimal in the dynamic layer, indicating the suitability of TMP-based backwashing. TOS, mainly poly-sulfur generated in UASB reactor, played a critical role in fouling in saline wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiang Wang, Zhong-Hong Zhang, Kuan-Kuan Yuan, Hui-Ying Xu, Guo-Hui He, Libin Yang, Joseph Buhagiar, Wei-Dong Yang, Yalei Zhang, Carol Sze Ki Lin, Hong -Ye Li
Summary: Microalgae-based antibiotic removal treatment has gained attention due to its low carbon and sustainable advantages. By using a suitable carbon source, microalgae can enhance the removal of pollutants through co-metabolism. However, there is limited knowledge about the removal of fluoroquinolone using a microalgae-mediated co-metabolism system. This study investigated the biotic processes of Haematococcus lacustris in a co-metabolism system with glycerol, which achieved significant removal efficiencies of 79.73% for ofloxacin (OFL) and 54.10% for enrofloxacin (ENR), respectively. The study also identified the metabolites and pathways involved in the biodegradation of fluoroquinolone by H. lacustris, and demonstrated the involvement of cytochrome P450 (CYP450) enzymes in this process. Molecular dynamic simulation further confirmed the binding conformation of fluoroquinolones with CYP450. These findings provide a microalgae-based approach for sustainable biodegradation of antibiotics using a co-metabolism strategy with glycerol, leading to the accumulation of valuable products.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Zi-Hao Qin, Xiaomeng Hu, Jin-Hua Mou, Guo-Hui He, Guang-Bin Ye, Hong-Ye Li, Shauhrat Singh Chopra, Liang Dong, Carol Sze Ki Lin, Xiang Wang
Summary: This study conducted Life Cycle Assessments (LCA) to evaluate the environmental impact of laboratory-scale EPA production by Phaeodactylum tricornutum. The results showed that technical advancements, particularly metabolic engineering, significantly reduced the global warming potential and cumulative energy demand associated with EPA production. Electricity consumption and extraction solvents were identified as the main contributors to the environmental impact. The study suggests future directions should focus on increasing EPA productivity, adopting alternative cultivation approaches with less energy input, and implementing environmentally friendly methods for EPA recovery.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Sunita Varjani, Wei Yan, Anshu Priya, Fengxue Xin, Carol Sze Ki Lin
Summary: Food waste produces greenhouse gases when disposed of improperly, so it is important to find ways to manage and convert it into valuable products. This paper explores various bioprocesses for transforming food waste and discusses the production of value-added products like polyurethane foam and protective equipment. It also addresses the use of multiomics strategies for food waste management and identifies potential challenges in pollution control and the development of a circular bioeconomy.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Agricultural Engineering
Ming Ho To, Huaimin Wang, Yahui Miao, Guneet Kaur, Sophie L. K. W. Roelants, Carol Sze Ki Lin
Summary: Large scale food waste was analyzed to determine the concentration of potential inhibitors, and lactic acid, acetic acid, and ethanol were identified as inhibitors of the growth of S. bombicola and its SLs production. Various methods were evaluated to remove these inhibitors, and a simple and effective strategy for removing inhibitors from food waste was developed, complying with the 12 principles of green chemistry and suitable for industrial high SLs production.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Jin-Hua Mou, Zi-Hao Qin, Yu-Feng Yang, Si-Fen Liu, Wei Yan, Lan Zheng, Ya-Hui Miao, Hong-Ye Li, Patrick Fickers, Carol Sze Ki Lin, Xiang Wang
Summary: This study investigated the characteristics of four types of food waste and their hydrolysates, and explored their potential application in biorefineries. The results showed that the characteristics of food waste and their hydrolysates varied based on their origins, and the origin and storage conditions of food waste affected microalgal growth and paramylon production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Xiangzhou Yuan, Yafei Shen, Piumi Amasha Withana, Ondrej Masek, Carol Sze Ki Lin, Siming You, Filip M. G. Tack, Yong Sik Ok
Summary: Environmental issues caused by food waste are significant for human well-being and ecosystem health. This study provides a review of recent advancements in converting food waste into engineered biochar through thermochemical conversion. The synthesis routes and practical applications of food waste-derived biochar are also discussed. Engineered biochar shows promise in mitigating environmental pollution and addressing energy crisis. However, further research is needed to understand the relationship between biochar properties and specific applications, and assessments of environmental benefits and economic feasibility are necessary before industrial implementation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Zhenyao Wang, Xuan Li, Muhammad Ahmar Siddiqui, Huan Liu, Ting Zhou, Lei Zheng, Siyu Huang, Li Gao, Carol Sze Ki Lin, Qilin Wang
Summary: Anaerobic digestion is a promising technology for energy recovery from secondary sludge, but the presence of humic substances in wastewater limits its efficiency. Strategies such as removing humic substances, pretreatment of sludge, and adding metal salts, enzymes, and microorganisms can counteract these negative effects and improve anaerobic digestion.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Agricultural Engineering
Shazia Rehman, Yvette Shihui Yang, Raffel Dharma Patria, Talha Zulfiqar, Noman Khalid Khanzada, Rabia Jalil Khan, Carol Sze Ki Lin, Duu-Jong Lee, Shao-Yuan Leu
Summary: Food waste biorefinery is a sustainable method for producing green chemicals, but the factors hindering enzymatic hydrolysis efficiency have not been clear. This study investigated the effects of different cooking and storing methods on food waste and determined the optimal dosages and reaction coefficients. Drying and frying decreased the hydrolysis rate, while hydrothermal pretreatment increased it.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Zhenyao Wang, Xuan Li, Huan Liu, Ting Zhou, Jibin Li, Muhammad Ahmar Siddiqui, Carol Sze Ki Lin, Mohammad Rafe Hatshan, Siyu Huang, Julie M. Cairney, Qilin Wang
Summary: This study investigates the use of lignosulfonate to enhance sludge anaerobic digestion, revealing that it can increase methane production and degradation extent. The findings suggest that lignosulfonate offers a sustainable approach to sludge treatment.
BIORESOURCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Xiang Wang, Guo-Hui He, Zhen-Yao Wang, Hui-Ying Xu, Jin-Hua Mou, Zi-Hao Qin, Carol Sze Ki Lin, Wei-Dong Yang, Yalei Zhang, Hong-Ye Li
Summary: This study demonstrates the potential of using genetically engineered strains of P. tricornutum to remove organophosphate pesticides while simultaneously producing biomass and biofuels. The study also reveals the mechanisms of organic phosphate degradation and regulation of related genes in this strain.
ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY
(2024)
Article
Engineering, Environmental
Cuiyi Liang, Qiong Wang, Wen Wang, Carol Sze Ki Lin, Yunzi Hu, Wei Qi
Summary: This study reports an efficient cellulase cocktail produced by co-cultivation of several Penicillium strains with lytic polysaccharide monooxygenases (LPMOs) producing strains. When blending the consortium-derived enzyme cocktail with commercial cellulase preparation, the highest hydrolysis yield reached 88.7%, indicating its potential for enhancing lignocellulose biodegradation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biotechnology & Applied Microbiology
Mohamad Rais Hasan, Che Azurahanim Che Abdullah, Mustapha Nor Afizah, Mohd Sabri Mohd Ghazali, Mohd Adzahan Noranizan
Summary: This study evaluates the efficacy of ultrasound in the extraction process of calcium hydroxyapatite (HAp). The findings show that low-intensity and moderate-intensity ultrasonication reduce the whiteness index and yield of HAp, while high-intensity ultrasonication reduces particle size and improves crystallinity.
FOOD AND BIOPRODUCTS PROCESSING
(2024)
Article
Biotechnology & Applied Microbiology
Barbara Flaibam, Rosana Goldbeck
Summary: This study evaluated the possibility of extracting proteins and obtaining hydrolysates from non-animal agro-industrial waste using enzymes for the production of cultured meat inputs. Results showed that the application of enzymes can maximize the use of protein from these wastes, providing a low-cost and environmentally friendly route with nutritional potential for cultured meat.
FOOD AND BIOPRODUCTS PROCESSING
(2024)
Article
Biotechnology & Applied Microbiology
Robson Costa de Sousa, Ariany Binda Silva Costa, Marcos Daniel Martins Freitas, Maisa Tonon Bitti Perazzini, Hugo Perazzini
Summary: This study investigated the drying kinetics of black pepper through experimental and mathematical modeling approaches. The models developed provided valuable insights into the coupling between heat and mass transfers during the drying process, and accurately described the drying behavior of black pepper.
FOOD AND BIOPRODUCTS PROCESSING
(2024)
Article
Biotechnology & Applied Microbiology
Ali Nikkhah, Hasan Nikkhah, Amir Shahbazi, Mona Kamelan Zargar Zarin, Duygu Beykal Iz, Mohammad-Taghi Ebadi, Mohammad Fakhroleslam, Burcu Beykal
Summary: Cumin and eucalyptus essential oils were enriched to meet ISO standards using a dynamic fractional distillation process. The optimization results showed low operating costs and potential for improving process efficiency.
FOOD AND BIOPRODUCTS PROCESSING
(2024)
Article
Biotechnology & Applied Microbiology
Sakshi Gupta, Gargi Ghoshal
Summary: A study was conducted to prepare green gram protein hydrogel enriched with curcumin and evaluate its physicochemical properties. The results showed that the hydrogel had high encapsulation efficiency, swelling capacity, and antioxidant property. Furthermore, applying the hydrogel as a coating on tomatoes and apples proved to be effective.
FOOD AND BIOPRODUCTS PROCESSING
(2024)
Article
Biotechnology & Applied Microbiology
Calvin Lo, Rene H. Wijffels, Michel H. M. Eppink
Summary: This study developed a novel strategy to separate dissolved oils from imidazole/hexanoic acid mixture and regenerate the solvent using polar antisolvents. By adding small amounts of water and methanol, high recovery of lipids was achieved, while ethanol required a large amount and caused solvent dilution.
FOOD AND BIOPRODUCTS PROCESSING
(2024)
Article
Biotechnology & Applied Microbiology
Manoj Sawale, Patnarin Benyathiar, Pablo Coronel, Ajay Rawat, Josip Simunovic, Ferhan Ozadali, Dharmendra K. Mishra
Summary: Microwave and ohmic heating are popular choices for aseptic processing due to their rapid heating capabilities and better product quality. This study aims to find an alternative approach to simulate processing conditions by modeling and validating the process using surrogate particles and microorganisms. A mathematical model was used to simulate heat transfer in fluid and solid particles. The process was validated using simulated particles and surrogate microorganisms, with magnetic implants in spherical particles to measure residence time distribution. The microwave aseptic system was successfully validated for producing shelf-stable particulate food products.
FOOD AND BIOPRODUCTS PROCESSING
(2024)