title: Is it possible to increase the aloin content of Aloe vera by the use of ultraviolet light?
abstract: In this paper, the effects of ultraviolet (UV) treatments on the aloin content of Aloe vera L. gel have been analyzed. UV-A treatment to A. vera plants for 36 days led to an increase in the aloin concentration in gel, rind tissue, and latex, while a decrease in chlorophylls a and b occurred in the photosynthetic tissue as a consequence of UV treatment. The growth of Penicillium digitatum and Botrytis cinerea (artificially inoculated on the leaf surface) was drastically decreased in UV-A-treated leaves, which could be attributed to the increase in the aloin concentration by the UV-A treatment. In addition, UV-C treatment to detached leaves also led to an increase in the gel aloin concentration, at higher levels than occurred with UV-A treatment, although leaves showed severe lesions after 48 h of treatment.
authors: Department of Food Technology, and ‡Department of Applied Biology, School of Engineering of Orihuela (EPSO), University Miguel Hernández , Carretera de Beniel km 3.2, 03312 Orihuela, Alicante, Spain.
authors: Domingo
authors: D
authors: Martínez-Romero
authors: Fabián
authors: F
authors: Guillén
authors: Henoc
authors: H
authors: Pérez-Aguilar
authors: Salvador
authors: S
authors: Castillo
authors: María
authors: M
authors: Serrano
authors: Pedro J
authors: PJ
authors: Zapata
authors: Daniel
authors: D
authors: Valero
mesh_terms: D000504:Aloe / Q000737:chemistry* / Q000528:radiation effects*; D020171:Botrytis / Q000254:growth & development; D002734:Chlorophyll / Q000032:analysis; D004642:Emodin / Q000031:analogs & derivatives* / Q000032:analysis / Q000378:metabolism / Q000494:pharmacology; D005659:Fungicides, Industrial; D010407:Penicillium / Q000254:growth & development; D018515:Plant Leaves / Q000737:chemistry* / Q000382:microbiology; D014466:Ultraviolet Rays
chemical_list: D005659:Fungicides, Industrial; D002734:Chlorophyll; D004642:Emodin; C006457:alloin