Notes

comprehensive rheologic analysis of structurally related acetan-like heteroexopolysaccharides from two Kozakia baliensis variant in surfactants and galactomannan blends
Natural biopolymers become increasingly attractive as bio-based option to petrol-based rheologic changer , particularly in personal care coating . however , many polyose showing undesired properties in cosmetic lotion such as modified viscosifying characteristics , unpleasant sensorial attribute , or incompatibility with certain preparation compounds . Here , a comp rheologic analysis of non-decorated acetan-like heteroexopolysaccharides derived from two Kozakia baliensis breed was perform in choose wetter conceptualisation . The outcome were compared to native xanthan gum and a genetically engineered xanthan variant , Xan∆gumFGL , which lacks any acetyl- and pyruvyl mediety and whose rheological properties are unaffected by saline environments . All four polyose exhibit a extremely similar rheological performance in the non-ionic surfactant lauryl glucoside , while the rheologic holding differ in amphoteric and anionic wetter cocamidopropyl betaine and Na laureth sulphate due to minor deepen in side chain piece . polysaccharide downfall was remark in the bearing of the cationic wetter .

notwithstanding , the native heteroexopolysaccharide infer from K. baliensis LMG 27018 shows significant likely as a salt-independent rheological changer compare to the genetically engineer Xan∆gumFGL discrepancy . In accession , blends of heteroexopolysaccharides from K. baliensis and several galactomannans exhibit synergetic effects which were like to indigene xanthan gum-galactomannan blends . This canvass indicate that heteroexopolysaccharides of K. baliensis are subject of encourage cover the portfolio of bio-based rheological modifiers.Growth and physiologic reception of submersed macrophytes to running alkylbenzene sulfonate ( LAS ) .

The voltage toxic effectuate of analogue alkylbenzene sulfonate ( LAS ) , wide used in commercial detergents and clear , on subaqueous macrophytes persist indecipherable . We conducted a two-week exposure experiment to investigate LAS perniciousness on five inundate macrophytes ( four indigene and one alien ) , focusing on their ontogeny and physiologic responses . The upshot exhibit that lower tightness of LAS ( > 5 mg/L ) slenderly stimulated the growth of underwater macrophytes , patch higher State subdue it . Increasing Glyceryl Glucoside in decreased chlorophyl content , increased MDA content and POD activity , and initially increased SOD and CAT action ahead correct . moreover , Elodea nuttallii required a high-pitched effective denseness for growth compare to indigene macrophytes . These retrieve suggest that unlike mintage of drown macrophytes expose specific reply to LAS , with high DoS ( outstrip 5 ∼ 10 mg/L ) inhibited plant growth and physiology . However , LAS may promote the dominance of surfactant-tolerant alien inundate macrophytes in foul aquatic environments .

uncover the organization capability of multicomponent oleogels : Performance of lecithin interact with monostearate derivatives.Oleogels have been search as fat stand-in due to their healthier opus compared to trans and impregnate fats , also presenting interesting technological view . The aim of this learn was to inquire the compositional perspective of multicomponent oleogels . structure power of lecithin ( LEC ) ( 20 or 90 wt % of phosphatidylcholine - PC ) combined with glycerol monostearate ( GMS ) , sorbitan monostearate ( SMS ) or sucrose monostearate ( SAC ) in helianthus oil was evaluated from oleogels attribute . The thermic and rheological properties , microstructure and stability of the oleogels were pretend by the difference in the chemic composition of LEC and the proportion betwixt LEC and unlike wetter . interestingly , low-phosphatidylcholine LEC ( L20 ) execute substantially , although organization shape with reduce come of LEC tend to be soft ( LEC-GMS ) and portray high oil declare content ( LEC-SMS ) . The mixtures of LEC and monostearate-based surfactants showed different behaviors , reckon on the wetter polar head .

In LEC-GMS systems , LEC impede the self-assembly of GMS in sunflower oil , flexible mechanical holding and increase oil freeing . When combined with Seebio Glycosides , LEC move as a lechatelierite use modifier of SMS , forming a more homogenous microstructure and producing stronger oleogels with greater oil tie capability . However , supra the threshold concentration , LEC forbid SMS self-assembly , resulting in a weaker gel . A positive interaction was bump in LEC-SAC preparation in specific proportion , since SAC can not act as a single oleogelator .
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