壳聚糖和海藻酸盐基质包封Ruta精油作为防治线虫的生态替代品。

IF 3 4区医学 Q2 CHEMISTRY, APPLIED Journal of microencapsulation Pub Date : 2023-06-01 DOI:10.1080/02652048.2023.2188939

Duvan Fernando Castillo, Rubén Albeiro Sánchez-Andica, Brayan Fernando Enriquez, Jaime Restrepo, Martha Isabel Páez-Melo

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引用次数: 0

摘要

研制了离子凝胶法制备的鹿茸精油控释配方。傅里叶变换红外光谱和差示扫描量热法证实了海藻酸盐和壳聚糖胶囊中存在芸香精油。释放研究表明，在酸性条件下(pH 4.2)， CHS-REO颗粒在30 d内的Sw达到240% (w/w)， ALG-REO颗粒的Sw达到101% (w/w)， CHS-REO的RR为23.7%，ALG-REO的RR为20.4%。另一方面，在pH 6.8时，它对ALG-REO的Sw有利840% (w/w)，因此RR(45.6%)，而对ch - reo的Sw不利，产生低RR(16.9%)。包封的芸香精油对线虫的杀线虫活性相同或更强。，与游离油和合成杀线虫剂(如carbo呋喃)相比，对植物没有植物毒性作用。研究表明，包封在生物聚合物基质中的REO可作为新型杀线虫剂。

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Encapsulation of Ruta essential oil in chitosan and alginate matrices as an ecological alternative for the control of nematodes.

Controlled release formulations of Ruta essential oil obtained by ionic gelation were developed. The presence of rue essential oil in the alginate and chitosan capsules was evidenced by Fourier transform infrared spectroscopy and differential scanning calorimetry. Release studies revealed that in acidic conditions (pH 4.2), the CHS-REO particles reached a Sw of 240% (w/w) in 30 days and 101% (w/w) for ALG-REO particles, generating a RR of 23.7% for CHS-REO and 20.4% for ALG-REO. On the other hand, at pH 6.8 it favored the Sw for ALG-REO 840% (w/w) and therefore the RR (45.6%) and disfavored the Sw of CHS-REO generating low RR (16.9%). Encapsulated rue essential oil showed equal or superior nematicidal activity against the nematode Melodogyne ssp., compared to free oil and a synthetic nematicide such as Carbofuran, without having a phytotoxic effect on the plant. This study revealed that REO encapsulated in biopolymeric matrices can be used as new nematicide formulations.

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来源期刊

Journal of microencapsulation 工程技术-工程：化工

CiteScore

6.30

自引率

2.60%

发文量

审稿时长

3 months

期刊介绍： The Journal of Microencapsulation is a well-established, peer-reviewed journal dedicated to the publication of original research findings related to the preparation, properties and uses of individually encapsulated novel small particles, as well as significant improvements to tried-and-tested techniques relevant to micro and nano particles and their use in a wide variety of industrial, engineering, pharmaceutical, biotechnology and research applications. Its scope extends beyond conventional microcapsules to all other small particulate systems such as self assembling structures that involve preparative manipulation. The journal covers: Chemistry of encapsulation materials Physics of release through the capsule wall and/or desorption from carrier Techniques of preparation, content and storage Many uses to which microcapsules are put.