The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Dalia Cizeikiene - One of the best experts on this subject based on the ideXlab platform.
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application of hydrolases and probiotic pediococcus acidilactici baltbio01 strain for cereal by products conversion to Bioproduct for food feed
International Journal of Food Sciences and Nutrition, 2018Co-Authors: Elena Bartkiene, Vadims Bartkevics, Vita Krungleviciute, Grazina Juodeikiene, Daiva Zadeike, Violeta Baliukoniene, Bronius Bakutis, R Zelvyte, Antonello Santini, Dalia CizeikieneAbstract:AbstractThe aim of this study was to apply the enzymatic treatment and fermentation by Pediococcus acidilactici BaltBio01 strain for industrial cereal by-products conversion to food/feed Bioproducts with high amount of probiotic lactic acid bacteria (LAB). LAB propagated in potato media and spray-dried remained viable during 12 months (7.0 log10 cfu/g) of storage and was used as a starter for cereal by-products fermentation. The changes of microbial profile, biogenic amines (BAs), mycotoxins, lactic acid (L+/D−), lignans and alkylresorcinols (ARs) contents in fermented cereal by-product were analysed. Cereal by-products enzymatic hydrolysis before fermentation allows to obtain a higher count of LAB during fermentation. Fermentation with P. acidilactici reduce mycotoxins content in fermented cereal by-products. According to our results, P. acidilactici multiplied in potato juice could be used for cereal by-products fermentation, as a potential source to produce safer food/feed Bioproduct with high amount o...
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the effect of savoury plants fermented with lactic acid bacteria on the microbiological contamination quality and acceptability of unripened curd cheese
Lwt - Food Science and Technology, 2016Co-Authors: Erika Mozuriene, Elena Bartkiene, Grazina Juodeikiene, Daiva Zadeike, Loreta Basinskiene, Audrius Maruska, Mantas Stankevicius, Ona Ragazinskiene, Jonas Damasius, Dalia CizeikieneAbstract:Five bacteriocins producing lactic acid bacteria (LAB) strains were selected to carry out the fermentation of the plants called Satureja montana L. (Sm) and Rhaponticum carthamoides (CD.) Iljin (Rc). The Bioproducts obtained were applied in the production of unripened curd cheese. The total amount of LAB in plant Bioproducts ranged from 7.46 to 9.42 log10 CFU/g and depended on the LAB strain and the plant species used. To reduce the possibility of biased evaluation, the acceptability of the products was assessed by using Face Reader software. Pediococcus pentosaceus KTU05-8 strain was more adaptable in the media of both plants (Sm and Rc) under both fermentation conditions: traditional submerged fermentation and solid state fermentation. The fermentation of Sm and Rc plants with LAB significantly reduced the amount of spores of mesophilic bacteria, enterobacteria, yeast and fungi. The addition of these Bioproducts to unripened curd cheese reduced pH and increased the total titratable acidity, the content of volatile compounds (thymol, carvacrol, p-cymene) and the acceptability of the cheese. In comparison to the results obtained after the addition of non-fermented Sm, Lactobacillus sakei fermented Bioproducts decreased the content of biogenic amines in cheese.
Ronald C Sims - One of the best experts on this subject based on the ideXlab platform.
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hydraulic retention time effects on wastewater nutrient removal and Bioproduct production via rotating algal biofilm reactor
Bioresource Technology, 2016Co-Authors: Foster A Agblevor, Sahand Iman Shayan, Lorenzo Bertin, Ronald C SimsAbstract:Rotating algal biofilm reactor (RABR) technology was successfully employed in an effective strategy to couple the removal of wastewater nutrients with accumulation of valuable Bioproducts by grown algae. A secondary stage municipal wastewater was fed to the developed system and the effects of the hydraulic retention time (HRT) parameter on both nutrient removal and Bioproduct production were evaluated under fed-batch operation mode. Two sets of bench scale RABRs were designed and operated with HRTs of 2 and 6days in order to provide competitive environment for algal growth. The HRT significantly affected nitrogen and phosphorus uptakes along with lipid and starch accumulations by microalgae in harvested biofilms. Domination of nitrogen removal in 2-day HRT with higher lipid accumulation (20% on dried weight basis) and phosphorus removal in 6-day HRT with higher starch production (27% on dried weight basis) was observed by comparing the performances of the RABRs in duplicate runs.
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applications of algal biofilms for wastewater treatment and Bioproduct production
2015Co-Authors: Maureen Kesaano, Terence Smith, Jonathan Wood, Ronald C SimsAbstract:Developing full-scale algal growth systems on attached platforms is motivated by the need to reduce energy requirements and costs associated with conventional algae cultivation, harvesting, and downstream processes. Bioproducts from algae include fuels, feeds, pigments, and additional sustainable Bioproducts, which serve as substitutes for petroleum-based chemicals. In addition, the development of robust algal biofilm technology offers the potential advantages of operating in deeper water columns, treating wastewaters that are characterized by high turbidity and/or color, and requiring less footprint area. The use of wastewater for algae cultivation has major advantages compared with using defined media added to clean water that include supplying both macro- and micronutrients that offset the cost of commercial fertilizers, utilizing currently existing infrastructure for handling, transporting, and containing large quantities of wastewater, recycling nutrients, and collecting revenues for wastewater remediation that offset the cost of cultivation. This chapter presents an examination of the current knowledge base for algae biofilms specifically related to developing an algae-based biorefinery that integrates wastewater treatment with Bioproduct production. Topics examined include mathematical modeling challenges for predicting performance, scaling for production of large amounts of algae biomass, and culturing algae for municipal and industrial wastewater treatment. Results of the examination indicate needs for standardization of parameters for measuring and monitoring biofilm processes, for characterization of mixed algae cultures, and for the development of mathematical models that can predict the growth and yield of mixed algal cultures as biofilms. Results also indicate that the integration of wastewater treatment and Bioproducts production has promising benefits with regard to reducing energy requirements and costs of an algal-based industry, with associated benefits of environmental sustainability.
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effect of coagulant flocculants on Bioproducts from microalgae
Bioresource Technology, 2013Co-Authors: Renil J Anthony, Joshua T Ellis, Ashik Sathish, Asif Rahman, Charles D Miller, Ronald C SimsAbstract:The potential of microalgae as a source of sustainable energy, nutritional supplements and specialized chemicals necessitates a thorough evaluation of the methods of harvesting microalgae with regards to the Bioproduct(s) desired. This research assessed the effect of coagulation, flocculation, and centrifugation on the wet lipid extraction procedure, which fractionated microalgae into hydrolyzed biomass for fermentation into acetone, butanol, and ethanol, an aqueous phase as growth media for genetically engineered Escherichia coli, and a lipid fraction for the production of biodiesel. Biomass harvested by cationic starches, alum, and centrifugation produced 30, 19, and 22.5 mg/g of dry wt. algae of total combined acetone, butanol, and ethanol, respectively. Higher biodiesel production was also observed for the cationic starches (9.6 mg/g of dry wt. algae) than alum (0.6 mg/g of dry wt. algae) harvested biomass. The results suggested significant effect of the harvesting methods on the yields of Bioproducts.
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production and harvesting of microalgae for wastewater treatment biofuels and Bioproducts
Biotechnology Advances, 2011Co-Authors: Logan Christenson, Ronald C SimsAbstract:Abstract The integration of microalgae-based biofuel and Bioproducts production with wastewater treatment has major advantages for both industries. However, major challenges to the implementation of an integrated system include the large-scale production of algae and the harvesting of microalgae in a way that allows for downstream processing to produce biofuels and other Bioproducts of value. Although the majority of algal production systems use suspended cultures in either open ponds or closed reactors, the use of attached cultures may offer several advantages. With regard to harvesting methods, better understanding and control of autoflocculation and bioflocculation could improve performance and reduce chemical addition requirements for conventional mechanical methods that include centrifugation, tangential filtration, gravity sedimentation, and dissolved air flotation. There are many approaches currently used by companies and industries using clean water at laboratory, bench, and pilot scale; however, large-scale systems for controlled algae production and/or harvesting for wastewater treatment and subsequent processing for Bioproducts are lacking. Further investigation and development of large-scale production and harvesting methods for biofuels and Bioproducts are necessary, particularly with less studied but promising approaches such as those involving attached algal biofilm cultures.
Erika Mozuriene - One of the best experts on this subject based on the ideXlab platform.
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the effect of savoury plants fermented with lactic acid bacteria on the microbiological contamination quality and acceptability of unripened curd cheese
Lwt - Food Science and Technology, 2016Co-Authors: Erika Mozuriene, Elena Bartkiene, Grazina Juodeikiene, Daiva Zadeike, Loreta Basinskiene, Audrius Maruska, Mantas Stankevicius, Ona Ragazinskiene, Jonas Damasius, Dalia CizeikieneAbstract:Five bacteriocins producing lactic acid bacteria (LAB) strains were selected to carry out the fermentation of the plants called Satureja montana L. (Sm) and Rhaponticum carthamoides (CD.) Iljin (Rc). The Bioproducts obtained were applied in the production of unripened curd cheese. The total amount of LAB in plant Bioproducts ranged from 7.46 to 9.42 log10 CFU/g and depended on the LAB strain and the plant species used. To reduce the possibility of biased evaluation, the acceptability of the products was assessed by using Face Reader software. Pediococcus pentosaceus KTU05-8 strain was more adaptable in the media of both plants (Sm and Rc) under both fermentation conditions: traditional submerged fermentation and solid state fermentation. The fermentation of Sm and Rc plants with LAB significantly reduced the amount of spores of mesophilic bacteria, enterobacteria, yeast and fungi. The addition of these Bioproducts to unripened curd cheese reduced pH and increased the total titratable acidity, the content of volatile compounds (thymol, carvacrol, p-cymene) and the acceptability of the cheese. In comparison to the results obtained after the addition of non-fermented Sm, Lactobacillus sakei fermented Bioproducts decreased the content of biogenic amines in cheese.
Jennifer B Dunn - One of the best experts on this subject based on the ideXlab platform.
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biofuel and Bioproduct environmental sustainability analysis
Current Opinion in Biotechnology, 2019Co-Authors: Jennifer B DunnAbstract:Life cycle analysis (LCA) is a key tool in the evaluation of biofuel and Bioproduct sustainability. Recent advances in these analyses include increased incorporation of spatially explicit elements of feedstock growth including changes in soil carbon and fertilization rates. Furthermore, new evaluations of processes to convert biomass to fuels (ethanol, algal-derived fuels, jet fuels, and others) and products have been conducted that examine emerging conversion technologies. Co-product allocation among co-produced biofuels and Bioproducts continues to raise LCA methodological challenges; approaches to allocation can drive LCA results. Given the variations in feedstocks, spatially explicit factors, conversion process design, and LCA methodological choices (e.g. co-product allocation), transparency in reporting biofuel LCA methodology and results is critical to enable cross-comparison of studies.
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life cycle analysis of Bioproducts and their conventional counterparts in greet
2015Co-Authors: Jennifer B Dunn, Felix K Adom, Norm Sather, Jeongwoo Han, Seth W Snyder, Jian Gong, Dajun Yue, Fengqi YouAbstract:To further expand upon the literature in this field and to develop a platform for Bioproduct LCA, we developed LCA results for ten Bioproducts produced either from algal glycerol or from corn stover-derived sugars. We used Argonne National Laboratory’s Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREETTM) model as the platform for this study. The data and calculations reported herein are available to GREET users in a Bioproducts module included in the fall 2015 GREET release. This report documents our approach to this analysis and the results. In Chapter 2, we review the process we underwent to select the Bioproducts for analysis based on market and technology readiness criteria. In Chapter 3, we review key parameters for production of the two feedstocks we considered: corn stover and algae. Given the lack of publicly available information about the production of Bioproducts, which is caused in large part by the emerging nature of the industry, we developed Aspen Plus® simulations of the processes that could be used to produce each Bioproduct. From these simulations, we extracted the energy and material flows of these processes, which were important inputs to the GREET Bioproducts module. Chapter 4 provides the details of thesemore » Aspen Plus simulations. It is important to compare the LCA results for Bioproducts to those for their petroleum counterparts. We therefore also developed material and energy flow data for conventional products based mostly on the literature. These data are described in Chapter 5 and are also included in the GREET Bioproducts module. In Chapter 6, we present results from this analysis and examine areas for refinement and future research.« less
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life cycle fossil energy consumption and greenhouse gas emissions of bioderived chemicals and their conventional counterparts
Environmental Science & Technology, 2014Co-Authors: Felix K Adom, Jennifer B Dunn, Jeongwoo Han, Norm SatherAbstract:Biomass-derived chemical products may offer reduced environmental impacts compared to their fossil-derived counterparts and could improve profit margins at biorefineries when coproduced with higher-volume, lower-profit margin biofuels. It is important to assess on a life-cycle basis the energy and environmental impacts of these Bioproducts as compared to conventional, fossil-derived products. We undertook a life-cycle analysis of eight Bioproducts produced from either algal-derived glycerol or corn stover-derived sugars. Selected on the basis of technology readiness and market potential, the Bioproducts are propylene glycol, 1,3-propanediol, 3-hydroxypropionic acid, acrylic acid, polyethylene, succinic acid, isobutanol, and 1,4-butanediol. We developed process simulations to obtain energy and material flows in the production of each Bioproduct and examined sensitivity of these flows to process design assumptions. Conversion process data for fossil-derived products were based on the literature. Conversion ...
Giuseppe Mazza - One of the best experts on this subject based on the ideXlab platform.
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Biological Activities of Extracts from Sumac (Rhus spp.): A Review
Plant Foods for Human Nutrition, 2007Co-Authors: Sierra Rayne, Giuseppe MazzaAbstract:Sumac is the common name for a genus ( Rhus ) that contains over 250 individual species of flowering plants in the family Anacardiaceae. These plants are found in temperate and tropical regions worldwide, often grow in areas of marginal agricultural capacity, and have a long history of use by indigenous people for medicinal and other uses. The research efforts on sumac extracts to date indicate a promising potential for this plant family to provide renewable Bioproducts with the following reported desirable bioactivities: antifibrogenic, antifungal, antiinflammatory, antimalarial, antimicrobial, antimutagenic, antioxidant, antithrombin, antitumorigenic, antiviral, cytotoxic, hypoglycaemic, and leukopenic. As well, the bioactive components can be extracted from the plant material using environmentally benign solvents that allow for both food and industrial end-uses. The favorable worldwide distribution of sumac also suggests that desirable Bioproducts may be obtained at the source, with minimal transportation requirements from the source through processing to the end consumer. However, previous work has focussed in just a few members of this large plant family. In addition, not all of the species studied to date have been fully characterized for potential bioactive components and bioactivities. Thus, there remains a significant research gap spanning the range from lead chemical discovery through process development and optimization in order to better understand the full potential of the Rhus genus as part of global green technology based on Bioproducts and bioprocesses research programs.
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Biological Activities of Extracts from Sumac (Rhus spp.): A Review
Nature Precedings, 2007Co-Authors: Sierra Rayne, Giuseppe MazzaAbstract:Sumac is the common name for a genus (Rhus) that contains over 250 individual species of flowering plants in the family Anacardiaceae. These plants are found in temperate and tropical regions worldwide, often grow in areas of marginal agricultural capacity, and have a long history of use by indigenous peoples for medicinal and other uses. The research efforts on sumac extracts to date indicate a promising potential for this plant family to provide renewable Bioproducts with the following reported desirable bioactivities: antifibrogenic, antifungal, antiinflammatory, antimalarial, antimicrobial, antimutagenic, antioxidant, antithrombin, antitumorigenic, antiviral, cytotoxic, hypoglycaemic, and leukopenic. As well, the bioactive components can be extracted from the plant material using environmentally benign solvents that allow for both food and industrial end-uses. The favorable worldwide distribution of sumac also suggests that desirable Bioproducts may be obtained at source, with minimal transportation requirements from the source through processing to end consumer. However, previous work has focussed on only a few members of this large plant family. In addition, not all of the species studied to date have been fully characterized for potential bioactive components and bioactivities. Thus, there remains a significant research gap spanning the range from lead chemical discovery through process development and optimization in order to better understand the full potential of the Rhus genus as part of global green technology based Bioproduct and bioprocess research programs.