Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/32008
Título: | “Supermarket Column Chromatography of Leaf Pigments” revisited : simple and ecofriendly separation of plant carotenoids, chlorophylls and flavonoids from green and red leaves |
Autor(es): | Dias, Alice Ferreira, Maria La Salete |
Palavras-chave: | High School/Introductory Chemistry Laboratory Instruction Organic Chemistry Learning/Manipulatives Chromatography Dyes/Pigments Green Chemistry Plant Chemistry Separation Science Hands-On Learning/Manipulatives First-Year Undergraduate/General |
Data: | 2015 |
Editora: | American Chemical Society. Division of Chemical Education |
Revista: | Journal of Chemical Education |
Citação: | Dias, A. M., & Ferreira, M. L. S. (2015). "Supermarket Column Chromatography of Leaf Pigments" Revisited: Simple and Ecofriendly Separation of Plant Carotenoids, Chlorophylls, and Flavonoids. from Green and Red Leaves. Journal of Chemical Education, 92(1), 189-192. doi: 10.1021/ed500299j |
Resumo(s): | A simple and ecofriendly procedure was developed in order to prepare extracts from red and green leaves. This procedure enables the separation of yellow, green and red band pigments and optimizes the previously reported Baking Soda “Supermarket Column”. The same extract also led to a novel and colorful potato starch column, which can efficiently separate β-carotene, xanthophylls, chlorophylls a and b, and flavonoids. Thus, two simple and attractive “supermarket columns” are presented that may be implemented either in university or high-school practical classes. The challenges associated with separation of these pigments, which have diverse physical and chemical properties, will improve the expected learning outcomes of these activities. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/32008 |
DOI: | 10.1021/ed500299j |
ISSN: | 0002-7863 |
Versão da editora: | The original publication is available at: http://pubs.acs.org/doi/abs/10.1021/ed500299j |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Supermarket Column Chromatography of Leaf Pigments Revisited_depositado.pdf Acesso restrito! | "Dados recolhidos" | 1,45 MB | Adobe PDF | Ver/Abrir |