The effect of linseed oil/canola oil blend on the coating and thermal properties of waste PET-based alkyd resins
This study aims to prepare oil-modified alkyd resins using a linseed oil/canola oil (LO/CO) blend and waste PET depolymerization product, suitable for environmentally friendly coating applications. Waste PET flakes obtained from grinding post-consumer water bottles were depolymerized by the aminoglycolysis reaction at high pressure. Raw depolymerization product (DP) was used in the synthesis of four components, 50% oil alkyd resins by monoglyceride method. DP has partly replaced the dibasic acid component in the PET-based alkyd formulations. Besides PET-based alkyds, reference alkyds without DP were also synthesized for co...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: Tu ğba Erol Demet H Özaltun Ferda Civan Çavuşoğlu I şil Acar Gamze G üçlü Source Type: research
Postbiotics-enriched flaxseed mucilage coating: A solution to improving postharvest quality and shelf life of strawberry
Int J Biol Macromol. 2024 Apr 6:131398. doi: 10.1016/j.ijbiomac.2024.131398. Online ahead of print.ABSTRACTThis research aimed to assess the effects of flaxseed mucilage (Mu) coatings supplemented with postbiotics (P) obtained from Lactobacillus acidophilus LA-5 on various physical, biochemical, and microbial characteristics of strawberry fruits. Strawberry fruits were immersed for 2 min in Mu2.5 (2.5 % mucilage in distilled water), Mu5 (5 % mucilage in distilled water), P-Mu2.5 (2.5 % mucilage in undiluted postbiotics) and P-Mu5 (5 % mucilage in undiluted postbiotics) solutions and were stored at 4 °C and 85 RH for 12 da...
Source: International Journal of Biological Macromolecules - April 10, 2024 Category: Biochemistry Authors: Houshmand Sharafi Abolfazl Alirezalu Shao-Quan Liu Azad Karami Mehran Moradi Source Type: research
The effect of linseed oil/canola oil blend on the coating and thermal properties of waste PET-based alkyd resins
This study aims to prepare oil-modified alkyd resins using a linseed oil/canola oil (LO/CO) blend and waste PET depolymerization product, suitable for environmentally friendly coating applications. Waste PET flakes obtained from grinding post-consumer water bottles were depolymerized by the aminoglycolysis reaction at high pressure. Raw depolymerization product (DP) was used in the synthesis of four components, 50% oil alkyd resins by monoglyceride method. DP has partly replaced the dibasic acid component in the PET-based alkyd formulations. Besides PET-based alkyds, reference alkyds without DP were also synthesized for co...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: Tu ğba Erol Demet H Özaltun Ferda Civan Çavuşoğlu I şil Acar Gamze G üçlü Source Type: research
Postbiotics-enriched flaxseed mucilage coating: A solution to improving postharvest quality and shelf life of strawberry
Int J Biol Macromol. 2024 Apr 6:131398. doi: 10.1016/j.ijbiomac.2024.131398. Online ahead of print.ABSTRACTThis research aimed to assess the effects of flaxseed mucilage (Mu) coatings supplemented with postbiotics (P) obtained from Lactobacillus acidophilus LA-5 on various physical, biochemical, and microbial characteristics of strawberry fruits. Strawberry fruits were immersed for 2 min in Mu2.5 (2.5 % mucilage in distilled water), Mu5 (5 % mucilage in distilled water), P-Mu2.5 (2.5 % mucilage in undiluted postbiotics) and P-Mu5 (5 % mucilage in undiluted postbiotics) solutions and were stored at 4 °C and 85 RH for 12 da...
Source: International Journal of Biological Macromolecules - April 10, 2024 Category: Biochemistry Authors: Houshmand Sharafi Abolfazl Alirezalu Shao-Quan Liu Azad Karami Mehran Moradi Source Type: research
The effect of linseed oil/canola oil blend on the coating and thermal properties of waste PET-based alkyd resins
This study aims to prepare oil-modified alkyd resins using a linseed oil/canola oil (LO/CO) blend and waste PET depolymerization product, suitable for environmentally friendly coating applications. Waste PET flakes obtained from grinding post-consumer water bottles were depolymerized by the aminoglycolysis reaction at high pressure. Raw depolymerization product (DP) was used in the synthesis of four components, 50% oil alkyd resins by monoglyceride method. DP has partly replaced the dibasic acid component in the PET-based alkyd formulations. Besides PET-based alkyds, reference alkyds without DP were also synthesized for co...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: Tu ğba Erol Demet H Özaltun Ferda Civan Çavuşoğlu I şil Acar Gamze G üçlü Source Type: research
The effect of linseed oil/canola oil blend on the coating and thermal properties of waste PET-based alkyd resins
This study aims to prepare oil-modified alkyd resins using a linseed oil/canola oil (LO/CO) blend and waste PET depolymerization product, suitable for environmentally friendly coating applications. Waste PET flakes obtained from grinding post-consumer water bottles were depolymerized by the aminoglycolysis reaction at high pressure. Raw depolymerization product (DP) was used in the synthesis of four components, 50% oil alkyd resins by monoglyceride method. DP has partly replaced the dibasic acid component in the PET-based alkyd formulations. Besides PET-based alkyds, reference alkyds without DP were also synthesized for co...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: Tu ğba Erol Demet H Özaltun Ferda Civan Çavuşoğlu I şil Acar Gamze G üçlü Source Type: research
Molecules, Vol. 29, Pages 1702: Determination of Bioactive Compound Kynurenic Acid in Linum usitatissimum L.
ymowicz
Kynurenic acid (KYNA) is a bioactive compound exhibiting multiple actions and positive effects on human health due to its antioxidant, anti-inflammatory and neuroprotective properties. KYNA has been found to have a beneficial effect on wound healing and the prevention of scarring. Despite notable progress in the research focused on KYNA observed during the last 10 years, KYNA’s presence in flax (Linum usitatissimum L.) has not been proven to date. In the present study, parts of flax plants were analysed for KYNA synthesis. Moreover, eight different cultivars of flax seeds were tested for the prese...
Source: Molecules - April 9, 2024 Category: Chemistry Authors: Magdalena Wr óbel-Kwiatkowska Waldemar Turski Gra żyna Silska Magdalena Rakicka-Pustu łka Lucyna Dymi ńska Waldemar Rymowicz Tags: Article Source Type: research
Shaping sustainable pathways: Enhancing mechanical properties of biocomposite through tannic acid treatment of flax fabrics
Int J Biol Macromol. 2024 Apr 4:131393. doi: 10.1016/j.ijbiomac.2024.131393. Online ahead of print.ABSTRACTBiocomposites developed using natural fibers serve as a sustainable alternative to synthetic composite materials. However, narrowing the performance gap between synthetic composites and biocomposites requires serious efforts. A promising approach is the modification of natural fibers using various chemical treatments. This paper investigates the potential of tannic acid (TA) treatment as a sustainable approach to enhance mechanical performance and reduce moisture absorption of flax fabric-reinforced biocomposites. The...
Source: International Journal of Biological Macromolecules - April 6, 2024 Category: Biochemistry Authors: Muhammad Shoaib Butt Khubab Shaker M Ayub Asghar Adeel Abbas Yasir Nawab Shahid Rasul Source Type: research
Shaping sustainable pathways: Enhancing mechanical properties of biocomposite through tannic acid treatment of flax fabrics
Int J Biol Macromol. 2024 Apr 4:131393. doi: 10.1016/j.ijbiomac.2024.131393. Online ahead of print.ABSTRACTBiocomposites developed using natural fibers serve as a sustainable alternative to synthetic composite materials. However, narrowing the performance gap between synthetic composites and biocomposites requires serious efforts. A promising approach is the modification of natural fibers using various chemical treatments. This paper investigates the potential of tannic acid (TA) treatment as a sustainable approach to enhance mechanical performance and reduce moisture absorption of flax fabric-reinforced biocomposites. The...
Source: International Journal of Biological Macromolecules - April 6, 2024 Category: Biochemistry Authors: Muhammad Shoaib Butt Khubab Shaker M Ayub Asghar Adeel Abbas Yasir Nawab Shahid Rasul Source Type: research
In vitro degradation and antibacterial activity of bacterial cellulose deposited flax fabric reinforced with polylactic acid and polyhydroxybutyrate
The objective of this study was to prepare biocomposites through the solution casting method followed by compression moulding in which bacterial cellulose (BC) deposited flax fabric (FF) produced through fermentation is coated with minimal amount of polylactic acid (PLA) and polyhydroxybutyrate (PHB). Biocomposites incorporated with 60 % of PLA or PHB (% w/w) show enhanced tensile strength. Cross-sectional morphology showed good superficial interaction of these biopolymers with fibres of FF thereby filling up the gaps present between the fibres. The tensile strength of biocomposites at 60 % PLA and 60 % PHB improved from 3...
Source: International Journal of Biological Macromolecules - April 4, 2024 Category: Biochemistry Authors: Abhay Pandit K Dinesh Kumar Rakesh Kumar Source Type: research
Antimicrobial fibres derived from aryl-diazonium conjugation of chitosan with Harakeke (Phormium tenax) and Hemp (Cannabis sativa) Hurd
This study reports aryl-diazonium covalent attachment of chitosan and PD13 (6-O-(3-(2-(N,N-dimethylamino)ethylamino)-2-hydroxypropyl)chitosan), a chitosan derivative with improved antibacterial activity, on to PTF and HH. The modification was confirmed using FTIR, XPS, SEM and water contact angle studies. Comparison of aryl-diazonium versus the use of succinic anhydride bridging for chitosan attachment was also investigated, with the diazonium method giving improved results. The treated PTF and HH fibres had good antibacterial activity against Staphylococcus aureus and this study contributes to the development of sustainab...
Source: International Journal of Biological Macromolecules - March 28, 2024 Category: Biochemistry Authors: Delsa Pulickal Joseph Urawadee Rajchakit Lisa I Pilkington Vijayalekshmi Sarojini David Barker Source Type: research
Molecules, Vol. 29, Pages 1520: Egg vs. Oil in the Cookbook of Plasters: Differentiation of Lipid Binders in Wall Paintings Using Gas Chromatography & ndash;Mass Spectrometry and Principal Component Analysis
This study highlights the complexities in identifying wall painting binders and the need for innovative and revised analytical methods in conservation efforts. (Source: Molecules)
Source: Molecules - March 28, 2024 Category: Chemistry Authors: Jana N ádvorníková V áclav Pitthard Ond řej Kurka Luk áš Kučera Petr Bart ák Tags: Article Source Type: research
Identification and bioactivity evaluation of ring-opening and lactone forms of enterolactone from sheep fed flaxseed cake
Nat Prod Res. 2024 Mar 21:1-6. doi: 10.1080/14786419.2024.2331606. Online ahead of print.ABSTRACTThe previously undescribed lactone ring-opening enterolactone and its sulphate were purified along with the lactone counterparts from the urine of dairy sheep fed flaxseed cake. The structures were determined by NMR and MS analyses. The ring-opening and lactone forms underwent mutual transformation with changes in pH and milk could protect the lactone form. Enterolactone exhibited more effective anti-proliferation activity on MDA-MB-231 breast cancer cells than its ring-opening counterpart, while the ring-opening enterolactone ...
Source: Natural Product Research - March 21, 2024 Category: Biochemistry Authors: Cong-Cong Zhuang Chun-Rui Liu Hai-Yan Xu Xin-Yue Yang Dan-Dan Wu Zhong Zheng Li-Wei Wang Zheng Liu Chao-Mei Ma Source Type: research
Identification and bioactivity evaluation of ring-opening and lactone forms of enterolactone from sheep fed flaxseed cake
Nat Prod Res. 2024 Mar 21:1-6. doi: 10.1080/14786419.2024.2331606. Online ahead of print.ABSTRACTThe previously undescribed lactone ring-opening enterolactone and its sulphate were purified along with the lactone counterparts from the urine of dairy sheep fed flaxseed cake. The structures were determined by NMR and MS analyses. The ring-opening and lactone forms underwent mutual transformation with changes in pH and milk could protect the lactone form. Enterolactone exhibited more effective anti-proliferation activity on MDA-MB-231 breast cancer cells than its ring-opening counterpart, while the ring-opening enterolactone ...
Source: Natural Product Research - March 21, 2024 Category: Biochemistry Authors: Cong-Cong Zhuang Chun-Rui Liu Hai-Yan Xu Xin-Yue Yang Dan-Dan Wu Zhong Zheng Li-Wei Wang Zheng Liu Chao-Mei Ma Source Type: research
Sex differences in the purinergic 2 receptor mediated blood pressure response to treadmill exercise in rats with simulated peripheral artery disease
Am J Physiol Regul Integr Comp Physiol. 2024 Mar 18. doi: 10.1152/ajpregu.00010.2024. Online ahead of print.ABSTRACTWe investigated the role played by ATP sensitive purinergic 2 (P2) receptors in evoking the pressor response to treadmill exercise in male and female rats with and without femoral arteries that were ligated for ~72 hours to induce simulated peripheral artery disease (PAD). We hypothesized that PPADS (P2 receptor antagonist, 10 mg i.v.) would reduce the pressor response to four minutes of treadmill exercise (15 m×min-1, 1° incline) and steady-state exercise plasma norepinephrine (NE) values in male and femal...
Source: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology - March 18, 2024 Category: Physiology Authors: Alec L E Butenas Joseph S Flax Raimi J Carroll C Shane Chuwonganant Ashley M Baranczuk Steven W Copp Source Type: research
