PLA binary blends with petroleum-based nondegradable thermoplastics

Nofar, Mohammadreza

doi:10.1016/b978-0-12-824150-9.00006-6

Cited by 5 publications

(4 citation statements)

References 128 publications

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“…It is widely used in various industries, including agriculture. It is a water-soluble polymer that retains moisture and regulates plant water movement . PEG is often used as an amendment to improve soil’s water-holding capacity and help plants withstand drought conditions.…”

Section: Introductionmentioning

confidence: 99%

“…It is a water-soluble polymer that retains moisture and regulates plant water movement. 15 PEG is often used as an amendment to improve soil’s water-holding capacity and help plants withstand drought conditions. In agriculture, it is often used as a root dip for transplanting or as a soil amendment to improve the soil’s moisture-holding capacity.…”

Section: Introductionmentioning

confidence: 99%

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Comparing the Positive Impacts and Stress Induction by Polyethylene Glycol (PEG 6000) Variable Levels on Canola (Brassica napus L.) Growth, Yield, and Oil Contents

Elahi,

Farrukh,

Jalaluddin

et al. 2023

ACS Omega

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Seed quality (i.e., emergence energy, viability, physical purity, size, weight) is a critical factor that influences the yield of crops. Poor seed quality can lead to reduced germination rates, lower plant populations, and, ultimately, lower crop yields. On the other hand, seed priming is suggested to be an effective technique for improving seeds germination and plant population. In this study, we investigated the effect of seed priming with polyethylene glycol (PEG) on the germination, growth, and yield of two varieties of canola, super canola, and sandal canola. The treatment plan includes five concentrations of PEG (i.e., 5, 10, 15, 20%), distilled water priming, and control (no priming). All of the treatments were applied in 3 replications following a completely randomized design. Our results showed that seed priming with 5%PEG (T2) significantly improved radicle length (50 and 36%), plant height (43 and 34%), chlorophyll a (44 and 43%), chlorophyll b (120 and 208%), and total chlorophyll (83 and 111%) compared to control in super canola and sandal canola, respectively. In particular, seed priming with 5%PEG resulted in the highest increase in protein contents (25 and 1.40%), oleic acid (26 and 40%), and linolenic acid (6 and 6%) compared to control in super canola and sandal canola, respectively. It is concluded that seed priming with 5%PEG is an effective treatment to improve the performance of canola crops in terms of seedling growth, yield, chlorophyll, protein, and oil content. More investigations are recommended as future perspectives using other canola varieties to declare 5% PEG as an effective treatment for canola for improvement in growth, oil, protein, and chlorophyll contents.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparing the Positive Impacts and Stress Induction by Polyethylene Glycol (PEG 6000) Variable Levels on Canola (Brassica napus L.) Growth, Yield, and Oil Contents

Elahi,

Farrukh,

Jalaluddin

et al. 2023

ACS Omega

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“…Polyethylene terephthalate (PET) is among the most used plastics worldwide, comprising approximately 10% of annual plastic production . PET is a semiaromatic thermoplastic polymer used in industrial settings for many uses, including engineering, packaging, and fibers, with a worldwide annual production of approximately 28 million tons. − Although the chemical stability and durability of PET allow it to be used ubiquitously, these properties also result in its persistence in landfills and the environment. Deposition in landfills, mechanical and chemical recycling, and incineration have many limitations that make them undesirable as long-term solutions to the problem of PET accumulation.…”

mentioning

confidence: 99%

Ancestral Sequence Reconstruction Identifies Structural Changes Underlying the Evolution of Ideonella sakaiensis PETase and Variants with Improved Stability and Activity

et al. 2022

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The improved production, recycling, and removal of plastic waste, such as polyethylene terephthalate (PET), are pressing environmental and economic issues for society. Biocatalytic (enzymatic) PET depolymerization is potentially a sustainable, low-energy solution to PET recycling, especially when compared with current disposal methods such as landfills, incineration, or gasification. IsPETase has been extensively studied for its use in PET depolymerization; however, its evolution from cutinases is not fully understood, and most engineering studies have neglected the majority of the available sequence space remote from the active site. In this study, ancestral protein reconstruction (ASR) has been used to trace the evolutionary trajectory from ancient serine hydrolases to IsPETase, while ASR and the related design approach, protein repair one-stop shop, were used to identify enzyme variants with improved activity and stability. Kinetic and structural characterization of these variants reveals new insights into the evolution of PETase activity and the role of second-shell mutations around the active site. Among the designed and reconstructed variants, we identified several with melting points 20 °C higher than that of IsPETase and two variants with significantly higher catalytic activity.

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“…Generally, PEG with a molecular weight below 20,000 g/mol is preferred for biomedical applications. 46 Hence, a wide molecular weight range of 200-20,000 g/mol has been explored in this research work.…”

Section: Model Formulationmentioning

confidence: 99%

Analysis of diffusion of plant metabolites from polyethylene glycol hydrogels using free volume theory

Natesan

Banerjee

Arockiarajan

et al. 2023

Proc Inst Mech Eng H

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The present work aims to comprehensively analyze the diffusion of plant metabolites from the polyethylene glycol (PEG) hydrogels for controlled release applications. For this study, a mathematical model based on free volume theory has been utilized to simulate the diffusion of low molecular weight plant metabolites. The results demonstrate that the mesh size of the crosslinked network, thereby the diffusion coefficient of the natural compound can be computed using the current framework. The proposed model has also been validated using the experimental data. The diffusion period has been observed to vary within a wide range of 3.42 h for Cinnamaldehyde to 49.25 h for Grandinin. An empirical parametric relationship between the diffusion time and molecular weight of both the hydrogels and natural compounds is established. It appears that the reported modeling approach will be clinically useful for improving the design of the sustained drug delivery systems.

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PLA binary blends with petroleum-based nondegradable thermoplastics

Cited by 5 publications

References 128 publications

Comparing the Positive Impacts and Stress Induction by Polyethylene Glycol (PEG 6000) Variable Levels on Canola (Brassica napus L.) Growth, Yield, and Oil Contents

Comparing the Positive Impacts and Stress Induction by Polyethylene Glycol (PEG 6000) Variable Levels on Canola (Brassica napus L.) Growth, Yield, and Oil Contents

Ancestral Sequence Reconstruction Identifies Structural Changes Underlying the Evolution of Ideonella sakaiensis PETase and Variants with Improved Stability and Activity

Analysis of diffusion of plant metabolites from polyethylene glycol hydrogels using free volume theory

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