Jo-Shu Chang

Jo-Shu Chang
National Cheng Kung University | NCKU · Department of Chemical Engineering

Ph.D.

About

682
Publications
219,872
Reads
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43,311
Citations
Additional affiliations
August 2001 - January 2016
National Cheng Kung University
Position
  • Chair

Publications

Publications (682)
Article
Biochar is a carbon-neutral solid fuel and has emerged as a potential candidate to replace coal. Meanwhile, spent coffee grounds (SCGs) are an abundant and promising biomass waste that could be used for biochar production. This study develops a biochar valorization strategy by mixing SCGs with hydrogen peroxide (H 2 O 2) at a weight ratio of 1:0.75...
Article
For commercial scale algal biorefining, harvesting cost is a major bottleneck. Thus, a cost-effective, less-energy intensive, and efficient harvesting method is being investigated. Among several harvesting methods, magnetic flocculation offers the benefits of modest operation, energy savings and quick separation. This study aims to develop novel ma...
Article
Denitrification reactions commonly remove nitrate and other reactive nitrogen (Nr) from wastewater. The C/N ratio indicates the sufficiency of organic carbons to drive heterotrophic denitrification; a low C/N ratio frequently leads to poor denitrification performance in wastewater treatment. This study proposed and tested a novel Sharon&DSR (denitr...
Article
Healthy foods containing omega-3/omega-6 polyunsaturated fatty acids (PUFAs) have been in great demand because of their unique dietary and health properties. Reduction in chronic inflammatory and autoimmune diseases has shown their therapeutic and health-promoting effects when consumed under recommended ratio 1:1-1:4, however imbalanced ratios (>1:...
Article
Following the surging demand for sustainable biofuels, biogas production via anaerobic digestion (AD) presented itself as a solution for energy security, waste management, and greenhouse gas mitigation. Algal-based biorefinery platform serves an important role in the AD-based closed-loop circular economy. Other than using whole biomass of micro- an...
Article
There is an immediate global requirement for an ingenious strategy for food waste conversion to biofuel in order to replace fossil fuels with renewable resources. Food waste conversion to bioethanol could lead to a sustainable process having the dual advantage of resolving the issue of food waste disposal as well as meeting the energy requirements...
Article
Anaerobic treatment is applied as an alternative to traditional aerobic treatment for recalcitrant compound degradation. This review highlighted the recalcitrant compounds in wastewaters and their pathways under aerobic and anaerobic conditions. Forty-one recalcitrant compounds commonly found in wastewater along with associated anaerobic removal pe...
Article
Industrial adoption of microalgae biofuel technology has always been hindered by its economic viability. To increase the feasibility of bioethanol production from microalgae, fermentation was applied to Chlorella vulgaris FSP-E biomass at high-solids loading conditions. First, Chlorella vulgaris FSP-E was cultivated to produce microalgae biomass wi...
Article
Due to the nutritional values and functional bioactivities of mushrooms, the global market value of the edible mushroom industry has been growing steadily. However, the production of 1 kg of fresh mushroom generates about 5 kg of wet byproducts (known as spent mushroom substrate; SMS). This necessitates proper waste management to mitigate potential...
Article
Biofilm, a layer comprising extracellular polymeric substances, is the platform where the embedded living cells degrade the substances in the wastewaters. Biofilm models have been developed as part of the comprehensive models for the wastewater treatment process. This review summarizes the biofilm models applied in contemporary literature based on...
Article
Aiming at realizing efficient microalgae-based CO2 sequestration from coal-fired power plants, this study investigated the interaction between the mass transfer of SO2-contained flue gas and microalgae growth. The results indicate that the CO2 dissolution in microalgae suspension and the growth of Chlorella vulgaris could be hindered by solution ac...
Article
Marine microalgae accumulate numerous compounds with commercial value including carotenoids, proteins, biopolymers, and lipids, making them attractive feedstocks to produce diverse bioproducts including pharmaceuticals, nutraceuticals, cosmetics, animal feed, and biofuel. With the emerging concepts of “Blue Economy” and “Blue Biotechnology”, marine...
Article
Sustainable environmental management is one of the important aspects of sustainable development goals. Increasing amounts of WWs from exponential economic growth is a major challenge, and conventional treatment methods entail a huge carbon footprint in terms of energy use and GHG emissions. Microalgae-based WW treatment is a potential candidate for...
Article
Naturally synthesized compounds have an evolving market demand as bioactive metabolites with numerous health benefits. In this context, microalgae-based bioactive compounds such as pigments and nutraceuticals are commercially available, and it is foreseen that the market demand would continue to grow due to the recent requirement for natural produc...
Article
For the first time, this study reveals the effects of an individual component of extracellular polymeric substances on the substrate consumption rates by the embedded cells based on the highly heterogeneous interior structures of a working biofilm. The flow-across mode in operation established a boundary-layer flow field with high transport resista...
Article
For lignocellulose biorefinery, pretreatment is needed to maximize the cellulose accessibility, frequently generating excess inhibitory substances to decline the efficiency of the subsequent fermentation processes. This mini-review updates the current research efforts to detoxify the adverse impacts of generated inhibitors on the performance of bio...
Article
Full-text available
Following the circular bioeconomy approach, this study shows the possibility of effective microalgal bioremediation of aquaculture wastewater integrated with the production of protein-rich biomass, which can be used as a feed additive. Screening was carried out among strains of Chlorella vulgaris BB-2, Parachlorella kessleri Bh-2 and Chlamydomonas...
Article
The demands for fruits and processed products have significantly increased following the surging human population growth and rising health awareness. However, an enormous amount of fruit waste is generated during their production life-cycle due to the inedible portion and perishable nature, which become a considerable burden to the environment. Emb...
Preprint
Microalgae are currently being recognized as a sustainable resource for valuable products such as pigments for their superior antioxidant activities. Chlorella sorokiniana MB-1- M12 is a lutein-rich mutant capable of growth and lutein production in photoautotrophic, mixotrophic, heterotrophic, and photoheterotrophic metabolism. Despite the capacity...
Article
Both co-cultivation and co-substrate addition strategies have exhibited massive potential in microalgae-based antibiotic bioremediation. In this study, glucose and sodium acetate were employed as co-substrate in the cultivation of microalgae-bacteria consortium for enhanced sulfadiazine (SDZ) and sulfamethoxazole (SMX) removal. Glucose demonstrated...
Article
This study synthesized nine biochars from different feedstocks and chemically modified their surfaces using MnFe2O4 precipitation at pH 11 (MnFe2O4-biochars). The maximum adsorption quantities (qmax) of Cu(II) at pH 6 and 25 oC for pristine biochars based on Langmuir model ranged 10.4-23.6 mg/g and for MnFe2O4-biochars, 32.7-43.1 mg/g, with enhance...
Article
Background: Brown algae have been used as food and traditional Chinese medicine for thousands of years and it is known to contain a bioactive component - fucoidan. However, little is known about the effect of fucoidan on cell differentiation and proliferation, particularly in topical application. Given that, this study focused on investigating the...
Article
The composite materials based on graphitic carbon nitrides (g-C3N4) are remarkably better semiconductors, but the inherent photocatalytic performance in its generic synthesis form is not up to the mark. Eminence efforts have been made to improve its performance and photocatalytic efficiencies. Recently, extensive investigations have been performed...
Article
Environmental pollution and freshwater crisis are the main pushing forces for upgrading new insights in wastewater treatment. Wastewater generated from various sources is an abundant source of various nutrients; their recovery could be a better perspective to compensate for the demands of the increasing population. Physicochemical or bacterial wast...
Article
Conventional heater is limited by the time and energy‐consuming design, showing high energy loss and causing a negative impact to the environment. A novel air heater integrated with microwave heating and activated carbon (AC) as thermal energy storage has been developed in this study to investigate the heat transfer efficiency in a helical coil. Mi...
Article
Full-text available
Wastewater is one of the most common by-products of almost every industrial process. Treatment of wastewater alone, before disposal, necessitates an excess of energy. Environmental concerns over the use of fossil fuels as a source of energy have prompted a surge in demand for alternative energy sources and the development of sophisticated procedure...
Article
The global rise in industrialization and vehicularization has led to the increasing trend in the use of different crude oil types. Among these mobil oil has major application in automobiles and different machines. The combustion of mobil oil renders a non-usable form that ultimately enters the environment thereby causing problems to environmental h...
Article
Polyhydroxybutyrate (PHB) is a member of the Polyhydroxyalkanoates (PHAs) family, which is generally produced through microbial biosynthesis. The synthetic biology tools are applied to transform PHB genes (PhaA, PhaB and PhaC) into an oleaginous yeast (Rhodotorula glutinis) genome. Western blot analysis confirms the expression of PhaA, PhaB and Pha...
Article
Chlortetracycline (CTC) is a tetracycline derivative antibiotic that has been widely used in the livestock industry for prophylactic and therapeutic purposes. Effective measures should be taken to decrease the environmental risks associated with CTC-rich waste. Biochar produced by biomass waste showed great potential for organic contaminants remova...
Article
Full-text available
The potential of cyanobacteria to perform a variety of distinct roles vital for the biosphere, including nutrient cycling and environmental detoxification, drives interest in studying their biodiversity. Increasing soil erosion and the overuse of chemical fertilizers are global problems in developed countries. The option might be to switch to organ...
Article
Biochar is a promising material and fuel for environmental sustainability. Microalgal biochar is produced using catalytic microwave torrefaction of Chlorella vulgaris FSP-E residue with magnesium oxide as a microwave absorber to enhance heating. Using Taguchi experimental design (TED) and Analysis of Variance (ANOVA), the effects of microwave power...
Article
Full-text available
Microplastics have emerged as an ubiquitous pollutant with severe environmental and human health hazards. Over the decades encountering these pollutants, microorganisms have evolved with the tool(s) to degrade different classes of plastic polymers. Several enzymes including depolymerases and lipases have been studied for the reduction of plastic to...
Article
The main purpose of this study was to explore the pretreatment process of corn starch wastewater (CSW) and engineered microalgae cultivation strategy to improve the nutrient recovery from wastewater and the yield of microalgae lutein. One-stage enzymatic hydrolysis utilizing α-amylase and glucoamylase simultaneously was established to efficiently h...
Article
Antibiotics in wastewaters (e.g., sulfonamides (SAs)) are not effectively removed by the conventional bacterial processes. In this study, a microalgae (Scenedesmus obliquus)-based process was evaluated for the removal of SAs. The maximum removal efficiency of sulfadiazine (SDZ) and sulfamethoxazole (SMX) by the consortium was 5.85% and 40.84%, resp...
Article
Background Taiwan's livestock industry has played an important role in agricultural development in the past decades. In addition to bringing prosperity and huge benefits to the countryside, it also generates wastewaters that cause eutrophication in water bodies. Bioremediation of wastewaters by immobilized microalgae has proven to be beneficial for...
Article
Background Fucoidan is a heterologous polysaccharide consisting mainly of L-fucose with sulfuric acid functional groups, and it is considered to be a repository of bioactive compounds with excellent therapeutic and medical potential, such as antioxidant, anti-inflammatory, antiangiogenic, antitumor, and antibacterial capabilities. Methods Subcriti...
Article
Microalgal biomass, known as the third generation feedstock for biofuels production, is currently being explored mainly for lipids and functional components. However, the potential of microalgal carbohydrates has not been evaluated. In this investigation, Chlorella vulgaris JSC-6 was used for carbohydrates production from CO2 and fatty acids under...
Article
Microalgal-bacterial system (MBS) is potential biotechnology in wastewater treatment because it can remedy defects of conventional processes (e.g., insufficient carbon source and imbalanced elements ratio). However, the mechanisms of nitrogen (N) transport and removal in MBS are still unclear. In this study, it was discovered that MBS was conducive...
Article
Microalgal biofuels have been long considered as potentially clean and sustainable alternatives to conventional fossil fuels. In this study, several parameters, including light intensity, initial nitrogen concentration, and nitrogen starvation duration were investigated for their effects on biomass production and carbohydrate accumulation of Chlore...
Article
A R T I C L E I N F O Keywords: Microalgae biomass Net-energy ratio Culture medium Continuous photo-bioreactor Bio-energy production A B S T R A C T Microalgae are promising sustainable energy sources for biodiesel production due to their rapid photosynthesis growth rate and capacity to be cultivated in wastewater, seawater, or freshwater. Moreover...
Article
Background Throughout the world, food wastage issues continue to plague almost every country. Multiple ideas and solutions have been conceived and are continuously being tested by scientists and government bodies to mitigate food waste management issues. Black Soldier Fly (BSF) rearing is an up-and-coming commodity because of its versatility and mu...
Article
Metal mediator Z-scheme photocatalyst comprises three elements: two semiconductors and a sandwiched metal mediator, so the catalyst can effectively degrade pollutants using visible lights. Proper design and synthesis of Z-scheme with targeted performance has not been systematically proposed. This work proposed the protocol to design and synthesize...
Article
The microalga Haematococcus pluvialis synthesizes high quantities of the antioxidant astaxanthin under adverse growth conditions. In addition to astaxanthin, the species accumulates other metabolites with commercial value including lipids, carbohydrates, and proteins. These compounds can be utilized to produce biodiesel, bioethanol, biogas, biofert...
Article
A U-type membraneless continuous-flow bioelectrochemical system was developed to efficiently remove tetracycline and antibiotic resistance genes from synthetic wastewaters at hydraulic retention time of only eight hours. At the TC concentration of 20–80 mgL⁻¹ in feed, the removals of tetracycline all exceeded 95%, over 60–1200 mgL⁻¹ chemical oxygen...
Article
Lutein is a xanthophyll carotenoid with remarkable applications in the healthcare sector due to its ocular-protective, anti-oxidative and anti-inflammatory activities. Currently, marigold flower petals are the only commercial source for lutein extraction, since chemical synthesis suffers from very low yields. Microalgae cultivation is a promising w...
Article
Lignocellulosic biomass (LCB) is considered as a sustainable feedstock for a biorefinery to generate biofuels and other bio-chemicals. However, commercialization is one of the challenges that limits cost-effective operation of conventional LCB biorefinery. This article highlights some studies on the sustainability of LCB in terms of cost-competitiv...
Chapter
Circular bioeconomy was defined as “the sustainable and resource-efficient valorization of biomass in integrated multioutput production chains (biorefineries) while also making use of the residues and wastes and optimizing the value of biomass over time via cascading.” This definition represents the stark difference between the current fossil fuel-...
Chapter
Considering critical pollutions caused by the persistent accumulation of conventional plastics in the nature environment, researchers and industries have put in intensive efforts for the development and innovation of fabrication of bio-based and biodegradable plastics. Algae emerged as a promising feedstock for biobased plastics production due to i...
Article
Full-text available
Hydrocolloids are a class of food additives with broad applications in the food industry to develop structure in food ingredients. Hydrocolloids can be synthetic, plant-based, or animal-based. Increasing consumer awareness has led to the use of natural food ingredients derived from natural sources, making algae-derived hydrocolloids more appealing...
Article
Strategies for enhancing performance of anaerobic digestion (AD) process has been widely studied. The bioelectrochemical system (BES), including microbial fuel cell, microbial electrolysis cell (MEC), microbial desalination cell, and microbial electrosynthesis, had been proposed to integrate with AD for performance enhancement. This mini-review sum...
Article
The increasingly severe environmental pollution and energy shortage issues have demanded the production of renewable and sustainable biofuels to replace conventional fossil fuels. Lignocellulosic (LC) biomass as an abundant feedstock for second-generation biofuel production can help overcome the shortcomings of first-generation biofuels related to...
Article
Utilizing wastewaters as feedstock for microalgal cultivation has the dual benefits of water-saving and low nutrient costs, with simultaneous remediation of pollutants and generation of value-added biochemical products. This study employed two different strategies to treat raw dairy wastewaters with moderate and high chemical oxygen demand (COD) le...
Article
Freshwater demand is rising worldwide due to largely increasing population and industrialization. Latest focus is to explore the Ocean and saline effluent from industries to produce freshwater in a sustainable way via algal desalination. Current physicochemical desalination technology is not only an energy-intensive and expensive process but also g...
Article
Following the escalating human population growth and rapid urbanization, the tremendous amount of urban and industrial waste released leads to a series of critical issues such as health issues, climate change, water crisis, and pollution problems. With the advantages of a favorable carbon life cycle, high photosynthetic efficiencies, and being adap...
Article
Microalgae are potential feedstocks for third-generation biofuel, and the thermodegradation of protein, lipid, and carbohydrates plays a vital role in the thermochemical conversion of microalgae for biofuel production. This work aims to investigate the kinetics and the interaction of extracted protein and lipid as well as model carbohydrates from m...
Article
Microalgae are being promoted as a superior alternative feedstock for sustainable biofuel production and recently they are also being increasingly recognized as phytoremediation agents in bioremediation. Other than these, microalgae have been utilized as a sustainable feed in aquaculture for many years. The success of microalgae as a feed is based...
Article
Waste generation is becoming a global concern owing to its adverse effects on environment and human health. The utilization of waste as a feedstock for production of value-added products has opened new avenues contributing to environmental sustainability. Microorganisms have been employed for production of biosurfactants as secondary metabolites by...
Article
Microbial removal of Chlortetracycline (CTC) at low CTC concentrations (in the order of 10-20 mg/L) has been reported. In this study, a novel microalgae-bacteria consortium was developed for effective CTC biodegradation at higher concentrations (up to 80 mg/L). The microalgae-bacteria consortium is resistant to up to 80 mg/L CTC, while the pure mic...
Article
Fucoxanthin, a brown-colored pigment from algae, is gaining much attention from industries and researchers recently due to its numerous potential health benefits, including anti-oxidant, anti-cancer, anti-obesity functions, and so on. Although current commercial production is mainly from brown macroalgae, microalgae with rapid growth rate and much...
Article
Commercial mushrooms are cultivated on lignocellulose wastes, such as corncob, saw dust, straw and wood chips. Following the rapidly increasing global mushroom production, the efficient recycling and utilization of the by-product, known as spent mushroom substrate (SMS) has garnered much attention due to the serious pollution issues caused. Embraci...
Article
Lactic acid (LA) is an essential commodity chemical, with bio-based LA ruling the market share. Macroalgae are a desirable feedstock for LA fermentation due to their high carbohydrate and low lignin content. Ulva sp., Gracilaria sp., and Sargassum cristaefolium were evaluated as a feedstock for LA fermentation. Mild acid-thermal hydrolysis (sulfuri...
Article
Global warming and climate change because carbon dioxide (CO2) release to atmosphere is the forecasting challenges to human being. We are facing how to overcome the dilemma on the balance between economic and environment, thus taking more efforts on green processes to meet agreement of sustainable society are urgent and crucial. The absorption of C...
Article
Phycoremediation is an emerging technology, where algae-based processes were used to effectively remove nutrients, organic wastes, and toxic heavy metals from the polluted environment. The waste algal biomass obtained after phycoremediation, which may contain residual hazardous materials, could still be used as feedstock to produce biofuels/bioener...
Article
Attached cultivation of microalgae is a suitable strategy for attaining high biomass productivity with effortless harvesting. This study evaluates the feasibility of using Basic Oxygen Furnace Slag (BOFS) as a carrier for microalgae cultivation. Among the three indigenous microalgae (namely, Chlorella sorokiniana PTC13, Tetraselmis suecica SC5, and...
Article
Rapid population growth, combined with increased industrialization, has exacerbated the issue of solid waste management. Poor management of municipal solid waste (MSW) not only has detrimental environmental consequences but also puts public health at risk and introduces several other socioeconomic problems. Many developing countries are grappling w...