Article
Chemistry, Physical
Gul Muhammad, Jingjing Wang, Wenlong Xiong, Yongkun Lv, Shen Zhang, Anqi Zhao, Parisa Jahanbakhsh-Bonab, Alexei Solovchenko, Jingliang Xu, Md. Asraful Alam
Summary: The present study aimed to develop a green and sustainable extraction procedure to obtain lutein from microalgae. A novel pretreatment process was established using a series of acidic and polyol based deep eutectic solvents (DESs). The lutein yield was optimized using response surface methodology (RSM) and one-factor-at-a-time approach.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Keat Long Low, Ani Idris, Noordin Mohd Yusof
Summary: This study presents a novel microwave-assisted extraction method using wet microalgae biomass, which improved mass transfer and maximized lutein recovery. Compared to the traditional method using dried biomass, this optimized extraction method increased the amount of recovered lutein by 1.88 fold, reduced the amount of chemical reagents, extraction time, and energy consumption significantly. The extracted lutein retained high antioxidant capacity and could be stored in a refrigerator for up to 3 weeks without losing its extractability.
PROCESS BIOCHEMISTRY
(2022)
Article
Chemistry, Applied
J. T. Mary Leema, T. Persia Jothy, G. Dharani
Summary: The study focuses on the rapid green microwave-assisted extraction of lutein from marine microalgae, optimizing the process parameters for higher lutein yield with less energy intensity. The results show that the optimized conditions for microwave-assisted alkali pre-treatment significantly increased lutein extraction yield and improved the quality of the extracted lutein. This innovative method can be a suitable process for lutein extraction from marine microalgae due to its efficiency and high extraction yield.
Article
Green & Sustainable Science & Technology
N. Nirmala, S. S. Dawn
Summary: In this study, biodiesel was successfully produced from Chlorella variabilis MK039712.1 microalga oil by optimizing transesterification conditions, resulting in high yield. The chemical structure changes of transesterified algal oil were analyzed using Fourier Transform Infra-Red Spectroscopy, H-1 Nuclear Magnetic Resonance, and C-13 Nuclear Magnetic Resonance. Fuel properties were found to be comparable with ASTM standards.
Article
Food Science & Technology
Zhenhua Wang, Shuzhen Li, Min Zhang, Huanyue Yang, Gang Li, Xin Ren, Shan Liang
Summary: This study aimed to improve the extraction ratio of rice bran oil by determining a new mixed solvent and optimizing the extraction conditions. Compared with traditional solvent extraction, the rice bran oil extracted using the new mixed solvent had better quality.
Review
Chemistry, Applied
Huiqin Chen, Weidong Lu
Summary: The demand for lutein has been increasing rapidly in recent years, and microalgae is considered a sustainable and promising source for lutein production. However, the high production cost of microalgae lutein extraction and purification is a major obstacle to its commercialization. This study provides a comprehensive summary of the typical microalgae species and their cell wall structure and chemical composition for lutein production. It also presents and compares various extraction solvents, intensification technologies, and extraction mechanisms using deep eutectic solvents. The current challenges and future prospects of microalgae lutein extraction are critically discussed, making this review a valuable reference for the commercialization of microalgae lutein production.
JOURNAL OF BIOBASED MATERIALS AND BIOENERGY
(2022)
Review
Energy & Fuels
Gul Muhammad, Thomas O. Butler, Bailing Chen, Yongkun Lv, Wenlong Xiong, Xinqing Zhao, A. E. Solovchenko, Anqi Zhao, M. Mofijur, Jingliang Xu, Md. Asraful Alam
Summary: Microalgae-derived lutein shows great potential for diverse applications in industries such as cosmetics, health supplements, pharmaceuticals, and food. Microalgae are the fastest-growing and most abundant source of lutein, offering a sustainable alternative to marigold flowers. Microalgal cultivation has environmental advantages, including higher carbon sequestration, reduced water footprint, and pesticide-free production. However, there are currently no industrial facilities for lutein production from microalgae.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Oh Kyung Choi, Jae Woo Lee
Summary: This study proposes an energy-efficient method using switchable polarity solvents for lipid recovery from microalgae. The results show that dipropylamine (DPA) is a potential solvent capable of achieving high lipid extraction yield from microalgae and efficient solvent recovery.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Applied
Chen Fan, Yang Liu, Yuhang Shan, Xueli Cao
Summary: This study utilized natural deep eutectic solvent for lutein recovery from Scenedesmus sp, showing improved yield and stability under specific conditions compared to conventional methods using organic solvents.
Article
Agricultural Engineering
Elisavet Bouloumpasi, Adriana Skendi, Stamatia Christaki, Costas G. Biliaderis, Maria Irakli
Summary: This study investigated the impact of different environmentally-friendly processing approaches on the extraction of lignans from sesame cake. Ethanol concentration and solid-to-solvent ratio were found to be the most influential factors. Ultrasound-assisted extraction was identified as a more affordable technique for large-scale applications.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Chemistry, Multidisciplinary
Shreya Sadukha, Bhavika Mehta, Shruti Chatterjee, Arup Ghosh, Ramalingam Dineshkumar
Summary: In this study, a systematic sequential extraction process was employed to valorize microalgal biomass for the simultaneous production of high-value products, lutein and phytol, as well as value-added biochemicals like protein, lipid, and carbohydrate. The extraction process involved two steps, resulting in the separation of lutein and phytol with high purity and the extraction of major biochemical compounds. Different strategies were employed to extract protein, lipid, and carbohydrate with optimal recovery rates. The suitability of the extracted biochemicals for aquaculture feed, bioethanol, and biodiesel production was evaluated. This study provides an approach to efficiently develop a biorefinery model for the valorization of microbial biomass.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Kang Hyun Lee, Ye Won Jang, Hansol Kim, Jang-Seu Ki, Hah Young Yoo
Summary: In this study, an effective solvent and optimized extraction parameters were used to improve the recovery of bioactive extracts from Tetraselmis suecica, resulting in a maximum lutein content of 2.79 mg/mL and a maximum lutein recovery estimated to be 22.3 mg/g biomass, which was 3.1-fold improved compared to the control group.
Article
Chemistry, Multidisciplinary
Jessica Aparecida Moretto, Alexander Ossanes de Souza, Lucas Moraes Berneira, Luiz Gustavo G. Brigagao, Claudio Martin Pereira de Pereira, Attilio Converti, Ernani Pinto
Summary: Microwave-assisted extraction (MAE) proved to be a more effective and environmentally friendly method for extracting fatty acids from microalgae and cyanobacteria compared to traditional extraction (TE). The variety of fatty acids extracted by MAE, especially unsaturated ones, showed potential for better quality biodiesel production.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Faiza Imtiaz, Dildar Ahmed, Rana Haris Abdullah, Samra Ihsan
Summary: In this study, efficient and eco-friendly techniques, microwave-assisted extraction (MAE) and ultrasound-assisted extraction (UAE), were optimized to extract bioactives from Thuja orientalis. Both techniques showed effectiveness in fracturing the cell matrix and extracting phenolic compounds, antioxidants, and metal chelators. MAE was found to be more efficient in TPC, TFC, and ABTS-RSA, while UAE showed higher efficiency in DPPH-RSA and MCA.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Thermodynamics
Yi Zhang, Sergey Soldatov, Ioannis Papachristou, Natalja Nazarova, Guido Link, Wolfgang Frey, Aude Silve
Summary: This study evaluated the efficiency of pulsed microwave (PMW) treatment on fresh Auxenochlorella protothecoides suspension and found that pulse properties had little effect on efficiency and lipid extraction performance. Lipid yield was positively correlated with energy input and influenced by algal concentration and suspension flow rate.
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.