Waste generation from food manufacturing facilities poses a serious hazard like environmental degradation, water pollution, and land pollution due to its high nutrient composition. Specifically, solid waste(powder) di...Waste generation from food manufacturing facilities poses a serious hazard like environmental degradation, water pollution, and land pollution due to its high nutrient composition. Specifically, solid waste(powder) disposal requires additional energy sources in terms of scientific treatment, structured collection, and disposal packaging according to the safety regulation. Thus, this research discusses the viewpoint of integrating food processing waste as an organic carbon source with BG-11 medium for Chlorella vulgaris(FSP-E) growth. The food processing waste powders investigated in this study were obtained from milk, and biscuit manufacturing facilities. The culture medium was modified by combining both BG-11 and food processing waste powders to identify the optimal algal growth and biochemical content.Compared to the microalgae grown in BG-11 alone(IBG), the combination of biscuit waste and IBG produced higher biomass concentration(44%), with increased lipid(11%), protein(20%), and carbohydrate(57%) contents. Chlorella vulgaris was able to uptake nutrients from the culture medium with combination of food processing waste and IBG thus enhancing its growth. The results obtained also indicate that an integrated culture system using food processing waste and synthetic sources can generate energy out of waste by improving the bio-composition of the microalgae biomass.展开更多
Removal of antimonite[Sb(Ⅲ)]from the aquatic environment and reducing its biotoxicity is urgently needed to safeguard environmental and human health.Herein,crawfish shell-derived biochars(CSB),pyrolyzed at 350,500,an...Removal of antimonite[Sb(Ⅲ)]from the aquatic environment and reducing its biotoxicity is urgently needed to safeguard environmental and human health.Herein,crawfish shell-derived biochars(CSB),pyrolyzed at 350,500,and 650℃,were used to remediate Sb(Ⅲ)in aqueous solutions.The adsorption data best fitted to the pseudo-second-order kinetic and Langmuir isotherm models.Biochar produced at 350℃(CSB350)showed the highest adsorption capacity(27.7 mg g^(−1)),and the maximum 78%oxidative conversion of Sb(Ⅲ)to Sb(V).The adsorption results complemented with infrared(FTIR),X-ray photoelectron(XPS),and near-edge X-ray absorption fine structure(NEXAFS)spectroscopy analyses indicated that the adsorption of Sb(Ⅲ)on CSB involved electrostatic interaction,surface complexation with oxygen-containing functional groups(C=O,O=C-O),π-πcoordination with aromatic C=C and C-H groups,and H-bonding with-OH group.Density functional theory calculations verified that surface complexation was the most dominant adsorption mechanism,whilstπ-πcoordination and H-bonding played a secondary role.Furthermore,electron spin resonance(ESR)and mediated electrochemical reduction/oxidation(MER/MEO)analyses confirmed that Sb(Ⅲ)oxidation at the biochar surface was governed by persistent free radicals(PFRs)(•O_(2)^(−)and•OH)and the electron donating/accepting capacity(EDC/EAC)of biochar.The abundance of preferable surface functional groups,high concentration of PFRs,and high EDC conferred CSB350 the property of an optimal adsorbent/oxidant for Sb(Ⅲ)removal from water.The encouraging results of this study call for future trials to apply suitable biochar for removing Sb(Ⅲ)from wastewater at pilot scale and optimize the process.展开更多
The aim of this study was to use dried corn silk powder variety of VL Baby corn-1 for formulation of flavoured herbal tea with different combination of Thyme(Trachyspermum ammi),Clove(Syzygium aromaticum),Cinnamon pow...The aim of this study was to use dried corn silk powder variety of VL Baby corn-1 for formulation of flavoured herbal tea with different combination of Thyme(Trachyspermum ammi),Clove(Syzygium aromaticum),Cinnamon powder(Cinnamomum verum),Timur(Zanthoxylum alatum),Tulsi(Holy basil)(Ocimum tenuiflorum),Gandraini(Achillea millefolium),Lemon grass(Cymbopogon citratus),Blend(Clove+Timur+Gandraini),and one only corn silk without any other herbs and to know antioxidant properties of developed tea.Result of sensory evaluation experiment showed that all combinations were liked moderately.Lemon grass flavour followed by cinnamon and clove blend obtained highest score.Total phenolic content,total flavonoid content,DPPH free radical scavenging activity and total antioxidant activity for all flavour are analyzed and reported.Results on DPPH free radical scavenging activity indicated that corn silk tea had 81.215±0.75μg/mL whereas blend with Timur had significant highest value and Thyme blend had lowest value 64.20±0.40 among all eight different blends with corn silk.The values for total antioxidant capacity blends with Timur(Zanthoxylum alatu)in corn silk showed significantly(P<0.05)highest value and Clove,Timur,Gandraini blends got lowest value.展开更多
基金This work was supported by the Korea Institute of Energy Technology Evaluation and Planning(KETEP)and the Ministry of Trade,Industry,and Energy(MOTIE)of the Republic of Korea(20194110300040,20173010092470).This work was supported partially by the Research Center for Precision Environmental Medicine,Kaohsiung Medical University,Kaohsiung,Taiwan,China,from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education(MOE)in Taiwan,China and by Kaohsiung Medical University Research Center Grant(KMU-TC113A01),Taiwan,China.This research work was supported financially from the Science and Technology Council,Taiwan,China.This work was supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(RS-2023-00219497).
基金supported by the Fundamental Research Grant Scheme, Malaysia (No. FRGS/1/2019/STG05/UNIM/02/2)My PAIR-PHCHibiscus Grant (No. My PAIR/1/2020/STG05/UNIM/1)supported by the National Natural Science Foundation of China (No. 41876124)。
文摘Waste generation from food manufacturing facilities poses a serious hazard like environmental degradation, water pollution, and land pollution due to its high nutrient composition. Specifically, solid waste(powder) disposal requires additional energy sources in terms of scientific treatment, structured collection, and disposal packaging according to the safety regulation. Thus, this research discusses the viewpoint of integrating food processing waste as an organic carbon source with BG-11 medium for Chlorella vulgaris(FSP-E) growth. The food processing waste powders investigated in this study were obtained from milk, and biscuit manufacturing facilities. The culture medium was modified by combining both BG-11 and food processing waste powders to identify the optimal algal growth and biochemical content.Compared to the microalgae grown in BG-11 alone(IBG), the combination of biscuit waste and IBG produced higher biomass concentration(44%), with increased lipid(11%), protein(20%), and carbohydrate(57%) contents. Chlorella vulgaris was able to uptake nutrients from the culture medium with combination of food processing waste and IBG thus enhancing its growth. The results obtained also indicate that an integrated culture system using food processing waste and synthetic sources can generate energy out of waste by improving the bio-composition of the microalgae biomass.
基金the National Key Research and Development Program of China(2020YFC1807704)the National Natural Science Foundation of China(21876027)the Science and Technology Innovation Project of Foshan,China(1920001000083).
文摘Removal of antimonite[Sb(Ⅲ)]from the aquatic environment and reducing its biotoxicity is urgently needed to safeguard environmental and human health.Herein,crawfish shell-derived biochars(CSB),pyrolyzed at 350,500,and 650℃,were used to remediate Sb(Ⅲ)in aqueous solutions.The adsorption data best fitted to the pseudo-second-order kinetic and Langmuir isotherm models.Biochar produced at 350℃(CSB350)showed the highest adsorption capacity(27.7 mg g^(−1)),and the maximum 78%oxidative conversion of Sb(Ⅲ)to Sb(V).The adsorption results complemented with infrared(FTIR),X-ray photoelectron(XPS),and near-edge X-ray absorption fine structure(NEXAFS)spectroscopy analyses indicated that the adsorption of Sb(Ⅲ)on CSB involved electrostatic interaction,surface complexation with oxygen-containing functional groups(C=O,O=C-O),π-πcoordination with aromatic C=C and C-H groups,and H-bonding with-OH group.Density functional theory calculations verified that surface complexation was the most dominant adsorption mechanism,whilstπ-πcoordination and H-bonding played a secondary role.Furthermore,electron spin resonance(ESR)and mediated electrochemical reduction/oxidation(MER/MEO)analyses confirmed that Sb(Ⅲ)oxidation at the biochar surface was governed by persistent free radicals(PFRs)(•O_(2)^(−)and•OH)and the electron donating/accepting capacity(EDC/EAC)of biochar.The abundance of preferable surface functional groups,high concentration of PFRs,and high EDC conferred CSB350 the property of an optimal adsorbent/oxidant for Sb(Ⅲ)removal from water.The encouraging results of this study call for future trials to apply suitable biochar for removing Sb(Ⅲ)from wastewater at pilot scale and optimize the process.
文摘The aim of this study was to use dried corn silk powder variety of VL Baby corn-1 for formulation of flavoured herbal tea with different combination of Thyme(Trachyspermum ammi),Clove(Syzygium aromaticum),Cinnamon powder(Cinnamomum verum),Timur(Zanthoxylum alatum),Tulsi(Holy basil)(Ocimum tenuiflorum),Gandraini(Achillea millefolium),Lemon grass(Cymbopogon citratus),Blend(Clove+Timur+Gandraini),and one only corn silk without any other herbs and to know antioxidant properties of developed tea.Result of sensory evaluation experiment showed that all combinations were liked moderately.Lemon grass flavour followed by cinnamon and clove blend obtained highest score.Total phenolic content,total flavonoid content,DPPH free radical scavenging activity and total antioxidant activity for all flavour are analyzed and reported.Results on DPPH free radical scavenging activity indicated that corn silk tea had 81.215±0.75μg/mL whereas blend with Timur had significant highest value and Thyme blend had lowest value 64.20±0.40 among all eight different blends with corn silk.The values for total antioxidant capacity blends with Timur(Zanthoxylum alatu)in corn silk showed significantly(P<0.05)highest value and Clove,Timur,Gandraini blends got lowest value.
