Article
Energy & Fuels
Javier A. Jimenez Forero, Tuyen H. T. Tran, Tana Tana, Adrian Baker, Jorge Beltramini, William O. S. Doherty, Lalehvash Moghaddam
Summary: This study investigated the effect of solvent on the stability of bio-oils produced from the hydrothermal liquefaction of sugarcane bagasse. It was found that the ethanol/water solvent mixture produced the most stable bio-oil compared to other solvents. The light oils fractionated by solvent extraction were also more stable than their corresponding bio-oils. The stabilities of the oils were related to alkylation, esterification, and acetalization reactions. This study demonstrated that the HTL of sugarcane bagasse in the presence of ethanol/water produces high-quality oils with long shelf-lives.
Article
Chemistry, Multidisciplinary
Fareeha Marriam, Adnan Irshad, Isra Umer, Muhammad Arslan Asghar, Muhammad Atif
Summary: Epoxy is widely used in industry for various applications, but its production from fossil fuels causes environmental pollution. Epoxidized vegetable oils (EVOs) are a potential replacement for fossil fuel-based epoxy due to their abundance, renewability, non-toxicity, and environmental friendliness. This review provides a compilation of information on different methods of oxidizing vegetable oils and the applications of epoxidized vegetable oils.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Review
Chemistry, Organic
Serena Perrone, Francesco Messa, Antonio Salomone
Summary: Hydrogenation processes, which add two hydrogen atoms to unsaturated bonds, are widely used in the manufacture of bulk and fine chemicals. However, these reactions have typically been carried out in volatile and often toxic organic solvents derived from petroleum. This review describes recent advances in reducing methodologies that aim to use sustainable and benign solvents derived from renewable sources, without sacrificing process efficiency and selectivity. Important aspects of green chemistry, such as catalyst recovery and product isolation, have been considered in the choice of these methodologies.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Food Science & Technology
Ruben Portillo-Lopez, Blanca E. Morales-Contreras, Eduardo Lozano-Guzman, Jose Basilio-Heredia, Maria D. Muy-Rangel, Luz A. Ochoa-Martinez, Walfred Rosas-Flores, Juliana Morales-Castro
Summary: This study demonstrated the use of vegetable oils as green solvents for carotenoid extraction from pumpkin pulp waste. By optimizing the extraction process parameters, the highest carotenoid extraction yield was achieved with canola oil at specific conditions. The enriched carotenoid oil obtained from this method could be used as a functional ingredient in various products.
JOURNAL OF FOOD SCIENCE
(2021)
Article
Engineering, Chemical
Eric Ziemann, Arindam Kumar Das, Paramita Manna, Revital Sharon-Gojman, Michal Sela-Adler, Charles Linder, Roni Kasher, Roy Bernstein
Summary: This study presents a facile method to fabricate crosslinked polyethersulfone membranes with remarkable stability in organic solvents. The performance of the membranes can be easily adjusted by controlling the polymer fraction. The weeklong filtration experiment highlights the excellent stability of the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Green & Sustainable Science & Technology
Amina Hamnas, G. Unnikrishnan
Summary: One of the biggest uses of oils is in the field of lubricants. Bio-based lubricating oils have become competitive with traditional petroleum-based oils due to government regulations, depletion of oil reserves, and negative environmental effects. Vegetable oils offer powerful alternatives and modifications to enhance biodegradability in lubricants. The study of bio-lubricants is highly important for researchers to explore the potential of different vegetable oils and additives. The article provides an overview of the charm and challenges of bio-lubricants, as well as techniques for enhancement and biodegradability assessment.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Nanoscience & Nanotechnology
Huicheng Hu, Min Chen, Nan Yao, Linzhong Wu, Qixuan Zhong, Bin Song, Muhan Cao, Qiao Zhang
Summary: Highly stable CsPbBr3 colloidal nanocrystal clusters (CNCs) with uniform morphology and size were prepared using a PVP-assisted reprecipitation method. These CNCs exhibit enhanced resistance against a variety of polar solvents and show good reactivity and high durability in photocatalytic degradation of methylene blue in alcoholic systems. This method can also be generalized to the synthesis of lead-free perovskites CNCs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Biochemistry & Molecular Biology
Seungmin Lee, Taewon Kang, Jong Young Lee, Jiyu Park, Seoung Ho Choi, Jin-Yeong Yu, Serin Ok, Sang-Hee Park
Summary: This review paper focuses on the investigation of recently reported OSN thin-film composite (TFC) membranes, especially on the selective layer materials for non-polar solvents. Proper selection of monomers and additives for the selective layer can enhance microporosity, reduce transport resistance, and improve membrane performance. This paper could serve as a bridge to advance the development of next-generation OSN TFC membranes for non-polar solvents.
Article
Polymer Science
Angelica Cifarelli, Laura Boggioni, Adriano Vignali, Incoronata Tritto, Fabio Bertini, Simona Losio
Summary: Bio-polyols were prepared using an environmentally friendly, solvent-free method, with the presence of triethylamine as catalyst reducing side reactions. The experimental targets included a medium functionality value of around 3, hydroxyl number up to around 90 mg KOH/g, narrow polydispersity index, and relatively low molecular mass. Water blown polyurethane foams were produced from selected bio-polyols and an aliphatic partially bio-based isocyanate, showing the effect of the chemical nature of substituents in the polyol backbone on the PU properties.
Article
Chemistry, Physical
Sourav Dutta, Nabaruna Basu, Debabrata Mandal
Summary: Excited-state intramolecular proton transfer (ESIPT) was studied for two different fluorophores M2N3HF and 2P3HBQ in binary solvent mixtures of n-heptane and methanol. The ESIPT dynamics of these two fluorophores in the solvent mixtures were found to be contrasting, with 2P3HBQ exhibiting retardation and M2N3HF showing dramatic arrest in the presence of methanol.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Feng Gao, Honggang Chang, Jinjin Li, Ruifeng Wang, Yanlong Gu
Summary: Contrary to the risks associated with traditional polar aprotic solvents, water has been considered an ideal alternative in organic synthesis due to its abundant supply and environmental compatibility. However, challenges such as low solubility of organic compounds and instability of water-incompatible catalysts hinder its practical use as a reaction medium. This review summarizes strategies to address these issues, including the use of task-specific surfactant-based catalysts and water-containing cosolvents, which offer a promising future for replacing hazardous polar aprotic solvents with water. Additionally, innovative technologies like biomimetic catalysis and continuous-flow reactions may pave the way for large-scale adoption of water as a solvent.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Energy & Fuels
Bojun Zhao, Haoyu Wang, Sida Xu, Lixin Qian, Haoyang Li, Jihui Gao, Guangbo Zhao, Madhumita B. Ray, Chunbao Charles Xu
Summary: This study investigated the effects of different extraction solvents on the yields and characteristics of bio-oil products from rubberwood sawdust liquefaction. It was found that acetone yielded the highest bio-oil in water-ethanol mixed solvent, while ethanol was the least efficient in bio-oil recovery. The chemical compositions of bio-oil products were greatly influenced by extraction solvents and reaction mediums, with phenols being dominant in all samples.
Article
Agricultural Engineering
Negin Amini, Swarit Dwivedi, Waqar Ahmad, Victoria S. Haritos, Akshat Tanksale
Summary: The experiment showed that microwave pre-treatment using 3.7 wt% formaldehyde solution is an efficient method, accelerating the heating rate of woody biomass, increasing saccharification efficiency, and producing stable lignin monomers. Compared to traditional autoclave treatment, microwave pre-treatment with formaldehyde solution released a higher sugar yield, potentially generating various basic materials for renewable products.
BIOMASS & BIOENERGY
(2021)
Article
Agricultural Engineering
Bin Liang, Jieyi Chen, Xiulan Guo, Zhuohong Yang, Teng Yuan
Summary: Bio-based organic-inorganic hybrid UV-curable coatings with self-cleaning property were prepared in a solvent-free one-pot method, showing excellent performances and potential for practical applications. The addition of GPTMS improved thermal stability and decreased glass transition temperature, while EC films exhibited better performance compared to ES films.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Materials Science, Multidisciplinary
Eletria Biswas, Julio Antonio Conti Silva, Mujibur Khan, Rafael Lopes Quirino
Summary: Natural and renewable polymers have been considered as alternatives to petroleum-based plastics due to environmental concerns. However, some of these polymers exhibit poor mechanical properties. In this study, composites based on tung and linseed oil resins were prepared using starch as reinforcement. The addition of starch increased the room temperature storage modulus of the composites.
Article
Materials Science, Textiles
Yanlai Wang, Xiuyun Xiao, Shu Wang, Kang Li, Ying Jiang, Yifa Ma, Tonghua Zhang, Ruilong Ran
Summary: The experiment revealed that the alkali lignin extracted from palm fiber has superior UV absorption properties compared to bamboo fiber. The UV absorbing functional groups in palm fibers include phenol OH, aliphatic OH, aromatic ring, and triple bond structure, which contribute to its high UV absorbance. Furthermore, the high protein content and concentrated aromatic structures in palm fibers also contribute to its UV blocking mechanism.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Materials Science, Textiles
M. Umashankaran, S. Gopalakrishnan
Summary: The suitability of Pongamia pinnata L. bark fiber (PPF) as a polymer reinforcement was identified for the first time in this article. The chemical analysis and characterization revealed its characteristics, including high cellulose content, crystallinity, and low hemicellulose content, indicating its suitability for fabricating eco-friendly bio-composites.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Chemistry, Applied
Pengjuan Li, Xinhao Yang, Wan Jun Lee, Furong Huang, Yong Wang, Ying Li
Summary: The study found that using rosemary-based antioxidants is more effective than synthetic antioxidants in frying food, with rosmarinic acid being the most effective. LF-NMR and NIRS methods can rapidly and efficiently monitor changes in the frying process.
Article
Food Science & Technology
Yih Phing Khor, Suet Ying Wan, Chin Ping Tan, Guanli Zhao, Changyu Li, Yong Wang, Ying Li
Summary: The study found that basa catfish oil has good thermo-oxidative stability and performs better than palm olein during frying, making it a potential alternative. Blending with other vegetable oils can improve the overall oil frying quality.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Paulo Torres, Merce Balcells, Ramon Canela-Garayoa
Summary: The Diels-Alder reaction generates products with different stereochemical configurations, which can often be predicted by the endo rule when the dienophile has a single electron-withdrawing substituent. The use of chiral eutectic solvents has become a novel tool in asymmetric synthesis to improve reaction yields and selectivity, maintaining sustainability in organic synthesis.
Review
Biochemistry & Molecular Biology
Sawssan Maksoud, Roula M. Abdel-Massih, Hiba N. Rajha, Nicolas Louka, Farid Chemat, Francisco J. Barba, Esperance Debs
Summary: Citrus genus is a globally important staple crop, with Citrus aurantium L. standing out for its unique characteristics and rich content of active constituents with various health benefits. This paper provides an overview of recent studies on the biological activities and medicinal uses of active constituents in C.aurantium.
Article
Chemistry, Multidisciplinary
Alberto Millan Acosta, Clara Cuesta Turull, Diana Cosovanu, Nuria Sala Marti, Ramon Canela-Garayoa
Summary: The study describes for the first time the whole-cell oxidation of HMF to DFF by Fusarium culmorum EAN 51, with the biocatalytic transformation considered more cost-effective compared to chemocatalytic methods. By optimizing the nutrient concentrations, high yields and selectivity in the transformation process were achieved, opening up new possibilities for sustainable production of DFF from renewable biobased resources.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Chemical
Harish Karthikeyan Ravi, Come Guidou, Jerome Costil, Christophe Trespeuch, Farid Chemat, Maryline Abert Vian
Summary: The black soldier fly larvae (BSFL) can be a sustainable ingredient for various products, and a wet mode fractionation (WMF) process has been explored to obtain lipid and protein fractions with enhanced functional properties. Lauric acid and linoleic acid are the primary fatty acids present in BSFL lipids, with aqueous and solid fractions being the main constituents of BSFL juice. The versatile WMF process proposed in the study involves simple unit operations to obtain functional ingredients from BSFL.
Article
Food Science & Technology
Lorenzo Lamberti, Giorgio Grillo, Lorenzo Gallina, Diego Carnaroglio, Farid Chemat, Giancarlo Cravotto
Summary: This study aimed to design an optimized extraction protocol using microwaves for the volatile fraction (VF) from hops, and investigate the impact of different hop forms on the extraction efficiency. The results showed that extraction in a pilot reactor could achieve higher yields and save more energy.
Article
Engineering, Chemical
Asaad Rehman Al-Hilphy, Abdul-Hadi K. Ahmed, Mohsen Gavahian, Ho-Hsien Chen, Farid Chemat, Thamer K. M. Al-Behadli, Mohd Zuhair Mohd Nor, So'bah Ahmad
Summary: The present study aims to develop a solar energy-based extraction system for essential oils. The results showed that the essential oils extracted using solar energy had similar yields and chemical compositions compared to traditional hydro-distillation. The solar-based extraction was also found to be greener in terms of energy consumption.
JOURNAL OF FOOD PROCESS ENGINEERING
(2022)
Article
Food Science & Technology
Christian Cravotto, Anne Sylvie Fabiano-Tixier, Ombeline Claux, Vincent Rapinel, Valerie Tomao, Panagiotis Stathopoulos, Alexios Leandros Skaltsounis, Silvia Tabasso, Laurence Jacques, Farid Chemat
Summary: Despite the toxic nature of hexane and its negative impact on the environment, there is a growing demand for sustainable and green extraction processes. This study evaluated the potential of using 2-methyloxolane (2-MeOx) as a bio-based alternative to replace hexane in the extraction of olive pomace. The results showed that 2-MeOx can improve extraction yield and produce extracts with higher levels of phenolic compounds.
Article
Food Science & Technology
Tarun Belwal, Christian Cravotto, Sudipta Ramola, Monika Thakur, Farid Chemat, Giancarlo Cravotto
Summary: Cocoa husk waste products, rich in beneficial compounds, can be extracted and utilized in various food and health products. Different extraction methods can be used to incorporate these waste products or extracts into the preparation of functional foods.
Article
Chemistry, Physical
Diana Cosovanu, Alberto Millan Acosta, Pau Cabaneros Lopez, Krist Gernaey, Qian Li, Rene Lametsch, Ramon Canela-Garayoa, Jordi Eras, Gemma Villorbina
Summary: This study focused on the biotransformation of HMF into DHMF using low-cost protein hydrolysates obtained from meat industry waste residues. The hydrolysis of protein was optimized using two commercial proteases, leading to higher DHMF yield compared to using commercial peptones. The use of these hydrolysates as a nitrogen source improved sporulation of the fungus, resulting in a higher conversion yield.
Article
Food Science & Technology
Ying Li, Xiaoci Zhuang, Xinrui Wu, Chaoying Qiu, Yong Wang
Summary: This study systematically investigated the valorization pathway of biowastes generated from Litsea cubeba essential oil processing. Ultrasound-assisted extraction significantly improved the extraction rate, and a combination of alkali deacidification and activated clay achieved the best results for treating L. cubeba kernel oils.
Review
Green & Sustainable Science & Technology
Ana Fernandez-Rios, Jara Laso, Daniel Hoehn, Francisco Jose Amo-Setien, Rebeca Abajas-Bustillo, Carmen Ortego, Pere Fullana-I-Palmer, Alba Bala, Laura Batlle-Bayer, Merce Balcells, Rita Puig, Ruben Aldaco, Maria Margallo
Summary: Superfoods are highly nutritious and environmentally friendly food choices in the global arena, but there is still a need for further research on their environmental impacts. Recommendations for future studies include expanding the scope of data, improving data quality and standardization, and using a wider range of indicators for analysis. This scientific field is still underexplored, and more research using Life Cycle Assessment (LCA) is encouraged to fill the current scientific gap.
JOURNAL OF CLEANER PRODUCTION
(2022)