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Yang L, Yang Y, Yang Y, He K, Jiang G, Tian Y. Bioactive composite films with improved antioxidant and barrier properties prepared from sodium alginate and deep eutectic solvent treated distillers' grains. Int J Biol Macromol 2024; 275:133376. [PMID: 38917924 DOI: 10.1016/j.ijbiomac.2024.133376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 06/18/2024] [Accepted: 06/21/2024] [Indexed: 06/27/2024]
Abstract
In this work, a straightforward approach utilizing distillers' grains (DG) waste and sodium alginate (SA) was developed to prepare functional and bioactive packaging films. Deep eutectic solvents (DESs) were initially synthesized from choline chloride (CO), betaine (BO), glycerol (GO), and oxalic acid. Composite films were then prepared from DES-treated DG slurry and SA at different ratios. Characterization and analysis revealed that adding 75 % CO-treated DG slurry reduced the water vapor permeability (WVP) by over 66 % compared to that of the SA film. Composite films containing CO/BO-treated DG slurry had an ultraviolet light barrier rate exceeding 99 %, while those with 75 % DES-treated DG slurry demonstrated excellent antioxidant activity, with a 2,2'-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) free radical scavenging rate of 80.14 %-88.35 %, representing a 322.45 %-365.73 % increase compared to that of the pure SA film. These composite films also exhibited favorable mechanical properties (31.58 MPa, 5.53 % EB), thermal stability, and biodegradability, extending the shelf life of grapes by 1.8 times. In conclusion, bioactive composite films derived from DES-treated DG are expected to replace petroleum-based plastics, enhancing sustainable biomass use and environmental responsibility.
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Affiliation(s)
- Li Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, China
| | - Yichen Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, China
| | - Ying Yang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Kaiwen He
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, China
| | - Guangyang Jiang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, China.
| | - Yongqiang Tian
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, China.
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Nwokocha BC, Chatzifragkou A, Fagan CC. Impact of Ultrasonication on African Oil Bean ( Pentaclethra macrophylla Benth) Protein Extraction and Properties. Foods 2023; 12:foods12081627. [PMID: 37107422 PMCID: PMC10137838 DOI: 10.3390/foods12081627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/29/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
African oil bean (Pentaclethra macrophylla Benth) is an underutilised edible oil seed that could represent a sustainable protein source. In this study, the impact of ultrasonication on the extraction efficiency and properties of protein from African oil bean (AOB) seeds was evaluated. The increase in the duration of extraction favoured the extraction of AOB proteins. This was observed by an increase in extraction yield from 24% to 42% (w/w) when the extraction time was increased from 15 min to 60 min. Desirable properties were observed in extracted AOB proteins; the amino acid profile of protein isolates revealed higher ratios of hydrophobic to hydrophilic amino acids compared to those of the defatted seeds, suggesting alterations in their functional properties. This was also supported by the higher proportion of hydrophobic amino acids and high surface hydrophobicity index value (3813) in AOB protein isolates. The foaming capacity of AOB proteins was above 200%, with an average foaming stability of 92%. The results indicate that AOB protein isolates can be considered promising food ingredients and could help stimulate the growth of the food industry in tropical Sub-Saharan regions where AOB seeds thrive.
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Affiliation(s)
- Blessing C Nwokocha
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights RG6 6DZ, UK
| | - Afroditi Chatzifragkou
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights RG6 6DZ, UK
| | - Colette C Fagan
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights RG6 6DZ, UK
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Yang L, Jiang G, Chen J, Xu Z, Yang Y, Zheng B, Yang Y, Huang H, Tian Y. Production of 1,3-propanediol using enzymatic hydrolysate derived from pretreated distillers' grains. BIORESOURCE TECHNOLOGY 2023; 374:128773. [PMID: 36828224 DOI: 10.1016/j.biortech.2023.128773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
To minimize environmental pollution and waste of resources, distillers' grains (DG) was used to produce 1,3-propanediol. Biological, physical, and chemical methods were used for pretreatment. The correlation between features of pretreated samples and enzymatic digestibility was analyzed. The results showed that the glucan and xylan conversion of dilute sulfuric acid pretreated DG increased by 69.59% and 413.68%, respectively. The glucan conversion of microwave pretreated and xylan conversion of laccase pretreated DG increased by 14.22% and 34.19%, respectively. Pretreatment enhanced enzymatic digestibility through changing the dense structure and features of DG making them conductive to enzymatic hydrolysis. The production of 1,3-propanediol using enzymatic hydrolysate of pretreated DG and glycerol in shake-flask was 17 g/L. The utilization of DG not only provides plentiful raw materials replacing fossil fuels to produce biofuels and other chemicals but efficiently reduces environmental waste.
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Affiliation(s)
- Li Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Guangyang Jiang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Jia Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Zhe Xu
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Yichen Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Bijun Zheng
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Yi Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Yongqiang Tian
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China.
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Li Q, Geng X, Zhu L, Zheng F, Chen E, Wang G, Li X. Structural characterization and antioxidant properties of a novel polysaccharide isolated from Jiuzao in vitro and in vivo. Food Res Int 2022; 162:111940. [DOI: 10.1016/j.foodres.2022.111940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 09/07/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022]
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Physicochemical characterisation of barley straw treated with sodium hydroxide or urea and its digestibility and in vitro fermentability in ruminants. Sci Rep 2022; 12:20530. [PMID: 36446835 PMCID: PMC9708690 DOI: 10.1038/s41598-022-24738-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/18/2022] [Indexed: 11/30/2022] Open
Abstract
The development of strategies to overcome the shortage of forage due to persistently low rainfall is becoming a central task for animal nutrition in research and practice. In this study, it was investigated how the treatment of straw with NaOH or feed urea in a practicable procedure for modern farms affects rumen fermentation (gas production and greenhouse gas concentration) as well as the digestibility of feed energy and nutrients. For this purpose, the treatments were tested individually and in different proportions in a total mixed ration (TMR) in ruminal batch cultures in vitro and in a digestibility trial with sheep. In order to explain the observed effects at the molecular level, descriptive data from 13C solid state nuclear magnetic resonance (NMR) and Fourier-transform infrared (FTIR) spectroscopy were obtained. NaOH treatment of straw increased crude ash (CA), non-fibrous carbohydrates, digestible energy (DE), and metabolizable energy (ME) concentration, whereas the proportion of neutral detergent fibre (aNDFom) and hemicellulose decreased. In urea treated straw, NH3-N and crude protein increased, whereas acid detergent lignin (ADL), DE, and ME decreased. The physically effective fibre (peNDF8) concentration increased in TMR containing 18% of NaOH or urea treated straw (p < 0.01). The application of straw treatments as pure substrates (not as part of a TMR) increased gas production and decelerated ruminal fermentation (p < 0.05). In vitro organic matter digestibility (IVOMD) of the straw (0.31) increased after NaOH (0.51; p < 0.05) and urea treatment (0.41; p > 0.05). As part of a TMR, straw treatments had no distinct effect on gas production or IVOMD. Concentrations of CH4 and CO2 were likewise not affected. Apparent total tract digestibility of aNDFom, acid detergent fibre (ADFom), hemicellulose, and cellulose increased in the TMR by approximately 10% points following NaOH treatment (p < 0.05). The inclusion of urea treated straw did not affect apparent digestibility. Calculated true digestibility of aNDFom was 0.68, 0.74, and 0.79, of ADFom 0.58, 0.57, and 0.65, and of ADL 0.02, 0.13, and 0.08 in TMR including untreated, NaOH treated, and urea treated straw, respectively. 13C NMR and FTIR analyses consistently revealed that the global structure and crystallinity of the carbohydrates (cellulose and hemicellulose) was not altered by treatment and the concentration of lignin was likewise not affected. Depolymerisation of lignin did not occur. However, NMR signals assigned to acetyl groups were significantly altered indicating that straw treatments disrupted linkages between hemicelluloses and lignin. Moreover, the acetates signal was affected. This signal can be assigned to linkages between ferulic acids and hemicelluloses (arabinoxylans). FTIR spectra of straw treatments mainly differed at a wavelength of 1730 cm-1 and 1240 cm-1. Disappearance of the 1730 cm-1 peak suggests removal of hemicelluloses or lignin related compounds by treatment. The disappearance of the lignin peak at 1240 cm-1 could be due to conjugated ketone (phenyl-carbonyl) removal or the removal of ferulic and p-coumaric acid acetyl groups. Both treatments are supposed to release fermentable cell wall components (hemicelluloses) from lignin-associated bonds and as a result, straw fibre can be better fermented in the rumen. This contributes to energy supply and increased fibre digestibility at least in the TMR that contained NaOH treated straw. The alkaline straw treatments probably induced a release of phenolics such as ferulic acid and p-coumaric acid, which can be metabolised in the gut and the liver and metabolites might be excreted with the urine. This could notably contribute to metabolic energy losses.
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Yankov D. Fermentative Lactic Acid Production From Lignocellulosic Feedstocks: From Source to Purified Product. Front Chem 2022; 10:823005. [PMID: 35308791 PMCID: PMC8931288 DOI: 10.3389/fchem.2022.823005] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/21/2022] [Indexed: 01/10/2023] Open
Abstract
The second (lignocellulosic biomass and industrial wastes) and third (algal biomass) generation feedstocks gained substantial interest as a source of various value-added chemicals, produced by fermentation. Lactic acid is a valuable platform chemical with both traditional and newer applications in many industries. The successful fractionation, separation, and hydrolysis of lignocellulosic biomass result in sugars’ rich raw material for lactic acid fermentation. This review paper aims to summarize the investigations and progress in the last 5 years in lactic acid production from inexpensive and renewable resources. Different aspects are discussed—the type of raw materials, pretreatment and detoxification methods, lactic acid-producers (bacteria, fungi, and yeasts), use of genetically manipulated microorganisms, separation techniques, different approaches of process organization, as well as main challenges, and possible solutions for process optimization.
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Zhao J, Wang D, Li Y. Proteins in dried distillers' grains with solubles: A review of animal feed value and potential non‐food uses. J AM OIL CHEM SOC 2021. [DOI: 10.1002/aocs.12516] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jikai Zhao
- Department of Biological and Agricultural Engineering Kansas State University Manhattan Kansas USA
| | - Donghai Wang
- Department of Biological and Agricultural Engineering Kansas State University Manhattan Kansas USA
| | - Yonghui Li
- Department of Grain Science and Industry Kansas State University Manhattan Kansas USA
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