Abstract：
:Polymer degradation through lipase appears to be an enthralling alternative to bulk chemical routes. Poly (ε-caprolactone) (PCL) is an artificial polyester that can be degraded by microbes and enzymes like lipases and esterases. The environmental degradation of PCL is dependent on the activity of bacteria that characterization techniques such as thermogravimetric analysis, differential thermal are widely present in the ecosystem. In this study, three different lipases derived from Lactobacillus brevis, Lactobacillus plantarum and their co-culture have been utilized to explore their efficiency towards PCL enzymatic degradation. The effect of parameters such as enzyme loading and degradation time has been explored to understand the efficiency of the enzymes used in this study. Various analysis, scanning electron microscopy and Fourier transform infrared spectroscopy have been employed to study the enzymatic degradation and its possible mechanistic insight.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Khan I,Ray Dutta J,Ganesan Rdoi
10.1016/j.ijbiomac.2016.11.040subject
Has Abstractpub_date
2017-02-01 00:00:00pages
126-131eissn
0141-8130issn
1879-0003pii
S0141-8130(16)31470-2journal_volume
95pub_type
杂志文章abstract：:The sequence distributions of two microbial copolyesters obtained by fermentation of Rhodospirillum rubrum, grown with 3-hydroxyhexanoic or 3-hydroxyheptanoic acids, were determined by analyzing the oligomers prepared by partial pyrolysis or partial methanolysis of these copolyesters using fast atom bombardment mass s...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/s0141-8130(99)00085-9
更新日期：1999-11-01 00:00:00
abstract：:MicroRNAs (miRNAs) are key regulators in the development and progression of osteosarcoma (OS). Based on our previous microarray data, we found that miR-335 expression was downregulated in OS tissue relative to normal tissue. Herein, we further found that miR-335 was downregulated in OS cell lines relative to the osteo...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.04.016
更新日期：2019-07-15 00:00:00
abstract：:As one of the most promising biopolymers for a variety of potential applications, chitosan has attracted much attention because of its unique biological, chemical, and physical properties. The functionalization of chitosan has been adopted to synthesize novel chitosan derivatives with improved water-solubility and exc...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.10.019
更新日期：2020-12-15 00:00:00
abstract：:Uracil DNA glycosylases (UDGs) play an important role in removing uracil from DNA to initiate DNA base excision repair. Here, we characterized biochemically a thermostable UDG from the hyperthermophilic euryarchaeon Thermococcus barophilus Ch5 (Tba UDG), and probed its mechanism by mutational analysis. The recombinant...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.05.073
更新日期：2019-08-01 00:00:00
abstract：:Selenium-enriched polysaccharides have become a major research focus owing to their high anti-oxidant activities. Selenium-enriched Pleurotus ostreatus polysaccharide (Se-POP) and the native polysaccharide (POP) were obtained by hot water extraction from fresh fruiting bodies of P. ostreatus with or without selenium. ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2017.12.152
更新日期：2018-05-01 00:00:00
abstract：:Lectins are proteins capable of specific and reversible binding to mono- and/or oligosaccharides, and within this group, Legume lectins are the most studied. However, most of these studies focus on the Papilionoideae subfamily, with Caesalpinioideae and Mimosoideae lectins being significantly less explored in the lite...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章,评审
doi：10.1016/j.ijbiomac.2020.03.113
更新日期：2020-07-01 00:00:00
abstract：:Interactions between aromatic phenylalanine, tyrosine and tryptophan residues and water as well as ligand molecules were analyzed by a computer search of a large number of high resolution structures in the protein data bank. Water molecules and oxygen ligands have a preference for the edges of the aromatic residues, b...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/0141-8130(95)01068-8
更新日期：1996-04-01 00:00:00
abstract：:Based on the copper (I) catalyzed Huisgen azide-alkyne cycloaddition (click chemistry), the novel synthesis of a variety of 1,2,3-triazole-linked starch derivatives was developed, including 6-hydroxymethyltriazole-6-deoxy starch (HMTST), 6-hydroxyethyltriazole-6-deoxy starch (HETST), 6-hydroxypropyltriazole-6-deoxy st...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2015.10.007
更新日期：2016-01-01 00:00:00
abstract：:In an attempt to gain insights into the possible relationship between the irradiation-mediated molecular weight reduction and structural modification and the growth-promotion activity, characterization of the polysaccharide before and after irradiation was carried out through Fourier Transform Infrared (FT-IR), Ultrav...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.12.022
更新日期：2019-03-01 00:00:00
abstract：:Despite the progress in the development of hemostatic products, efficient treatment solutions to control hemorrhage upon wounding are still necessary. Chitosan (CS) is a natural hydrogel-forming polysaccharide, easy to modify for specific applications. Inorganic compounds in turn possess documented hemostatic properti...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.06.187
更新日期：2020-11-01 00:00:00
abstract：:The present manuscript describes a novel bioassay consisting of apyrase and heat shock protein 90 (Hsp90) without additional co-chaperone supplementation; intended for high-throughput screening of anti-cancer drugs and prognosis of stress. In this regard, Hsp90 and adenosine 5'-triphosphate (ATP) mediated firefly luci...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.03.110
更新日期：2019-06-15 00:00:00
abstract：:Polycationic chitosan has a strong coordination to heavy metal ions due to its multifunctional hydroxyl and amino groups. However, due to the fast and facile dissolution of chitosan in acidic medium, it is difficult to measure the exact adsorption amount or coordination capacity accurately. In this work, a simple meth...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.01.203
更新日期：2020-04-01 00:00:00
abstract：:In this study, a class of interpenetrating network (IPN) gels were successfully fabricated based on glucono-δ-lactone (GDL) induced gelation of mixed alginate (Alg) and deacylated gellan (gellan) systems. The IPN gels were prepared by co-hydrating a mixed Alg and gellan powder, followed by adding GDL and calcium carbo...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.02.107
更新日期：2020-05-15 00:00:00
abstract：:Cu(II) 12-MCCu(II)PyrAcHA-4 metallacrown was studied by several spectroscopic techniques as an interacting ligand with G-quadruplex DNA structures. Investigations were performed on oligonucleotides bearing human telomeric and protooncogenic c-myc sequences in buffered solution mimicking ionic conditions in cellular en...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.11.163
更新日期：2020-08-01 00:00:00
abstract：:Most polyhydroxyalkanoates (PHAs) reported to date fall into one of two broad classes: either hydroxybutyrate-hydroxyvalerate copolymers (typified by the PHA produced by Alcaligenes eutrophus), or hydroxyoctanoate-rich heteropolymers (typified by the PHA produced by Pseudomonas oleovorans). Few reports of copolymers r...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/0141-8130(95)93522-y
更新日期：1995-04-01 00:00:00
abstract：:An enzyme-free dual catalytic DNA circuit for amplified detection of nucleic acids has been developed. The system functions based on a cyclic self-assembly of two auxiliary hairpins (H1 and H2) and three biotinylated hairpin oligonucleotides (H3, H4 and H5), in the format of two molecular circuits. In the upstream cir...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.03.059
更新日期：2020-07-01 00:00:00
abstract：:The impacts of chitosan with different molecular weight on the formation mechanism, structural characteristics and encapsulating properties of the zein-chitosan nanocomplexes were investigated. The results of dynamic light scattering showed that the mean size of nanocomplexes was increased and became more highly posit...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.07.245
更新日期：2020-12-01 00:00:00
abstract：:This study reports encapsulation-vitrification of Leydig cells. The Leydig cells were encapsulated in sodium alginate beads of different sizes and cryopreserved by vitrification or slow freezing. Physico-chemical characterization of beads was done by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (X...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.02.233
更新日期：2020-06-15 00:00:00
abstract：:Ligustrum quihoui (L. quihoui) is an important hedge material for landscaping and also possesses medicinal value. To generate genomic resources for better understanding the evolutionary history of this important plant, the organelle genomes of L. quihoui are de novo assembled and functionally annotated. Compared with ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.10.075
更新日期：2020-12-15 00:00:00
abstract：:Large amounts of DNA-enriched biomaterials, such as salmon milts and shellfish gonads, are discarded as industrial waste around the world. Therefore, the utilizations of DNA with the specific function are important for the biomaterial science and the curce technology. We could convert the discarded DNA to an enzymatic...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2008.03.005
更新日期：2008-06-01 00:00:00
abstract：:In this work, hydroxyapatite (HA) mineralized on chitosan (CS)-coated poly(lactic acid) (PLA) nanofiber mat was prepared and compared in terms of mineralization characteristics. Significant calcium phosphate crystals formed on various concentrations of CS-coated PLA fiber mat with better uniformity after 2h of incubat...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2014.04.039
更新日期：2014-07-01 00:00:00
abstract：:Many restoring formulations for damaged hair keratin have been developed. Some patents claim that the hair repair occurs through the reconstruction of disulfide bridges of keratin, through α,β-unsaturated Michael acceptors, such as shikimic acid and bis-aminopropyl diglycol dimaleate. To gain more insights into the po...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.11.194
更新日期：2021-01-15 00:00:00
abstract：:Polymorphism of DNA plays a very important part of research relating to the drug-DNA interactions. Here main focus of our investigation is to monitor the interaction of the benzophenanthridine plant alkaloid, nitidine (NIT) with two different forms of DNA i.e. B-DNA and protonated form of DNA maintaining proper temper...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.08.031
更新日期：2018-11-01 00:00:00
abstract：:Prostate cancer (PC) is one of the most common human malignancies, which has been steadily rising among males in many countries. The leucine-rich repeats and immunoglobulin-like domains (LRIG) genes were applied in the prognosis of different types of cancers, including PC. In that case, this study is supposed to inves...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.11.028
更新日期：2019-03-01 00:00:00
abstract：:A novel pullulanase gene, PulSS4, was identified from the gut microflora of Hermetia illucens by a function-based metagenome screening. The PulSS4 gene had an open reading frame of 4455 base pairs, and encoded a mature protein of 1484 amino acids, with a signal peptide sequence of 44 amino acids. The deduced amino aci...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2015.10.067
更新日期：2016-01-01 00:00:00
abstract：:Our previous study has indicated that a crude polysaccharide derived from Acorus tatarinowii, AT50, remarkably improves learning and memory in scopolamine-induced amnesic mice and prevents the release of inflammatory mediators. To further explore the bioactive constituents of AT50, a novel polysaccharide (ATP50-3) was...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.06.266
更新日期：2020-11-15 00:00:00
abstract：:For administration of therapeutic agents, the oral route is favored since it is comfortable to patients and also requires a reduced cost. Recently, a considerable amount of work has been reported on carboxymethyl cellulose as oral delivery systems. In contrast to all other polysaccharides having a profile in a pharmac...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章,评审
doi：10.1016/j.ijbiomac.2019.04.079
更新日期：2019-07-15 00:00:00
abstract：:An effective antibacterial nanofiber film was prepared through the incorporation of ε-polylysine (ε-PL) into gelatin/chitosan-based polymers. All nanofiber films had uniformly disordered fibrous structure with good diameter distribution. The weight ratio of the gelatin/chitosan/ε-PL (G/C/P) influenced the solution pro...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.08.152
更新日期：2020-12-01 00:00:00
abstract：:Tyrosinase inhibitors have potential applications in the cosmetics and food industries for preventing browning reactions and also as therapeutic drugs for neurodegenerative diseases such as Parkinson's. In this article, crocin and curcumin were evaluated as mushroom tyrosinase inhibitors. Results showed that, both com...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2014.01.028
更新日期：2014-04-01 00:00:00
abstract：:The present study reports the re-examination of the crystal structure of mannan I by the X-ray powder diffraction study combined with the miniature crystal model simulation. A primary objective of this study was to investigate an adequate chain staggering position along the fiber axis. Among the several crystal struct...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/s0141-8130(97)00069-x
更新日期：1997-10-01 00:00:00
