Krampah C, Nyanzu F, Quaye A, Adu P, Asiamah EA, Aboagye B, Simpong DL. Crude extracts from Allium cepa skin and
Sorghum bicolor seed can provide as non-toxic and eco-friendly cytoplasmic stains.
Pract Lab Med 2021;
26:e00239. [PMID:
34150969 PMCID:
PMC8193152 DOI:
10.1016/j.plabm.2021.e00239]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/19/2021] [Accepted: 05/21/2021] [Indexed: 11/08/2022] Open
Abstract
Introduction
Staining is an important histological process; however, the use of non-toxic and environmentally friendly products is generally required. We explored the staining quality of two natural plants, Allium cepa skin and Sorghum bicolor seed extract on the cytoplasm.
Materials and methods
Distilled water at 37 °C and 1% acid-ethanol were respectively used to extract the dyes from Allium cepa skin and Sorghum bicolor seed.
Result
The application of these two dyes on rodent tissue showed an excellent cytoplasmic histomorphology.
Conclusion
Allium cepa skin and Sorghum bicolor seed extracts are good cytoplasmic dyes when used as counterstain for haematoxylin.
At acidic pH (3.5), Allium cepa skin extract stains cytoplasm and shows comparable result to eosin application.
Similarly, at a pH of 7.0, crude extract from Sorghum bicolor seed stains the cytoplasm with clear cellular features.
These extracts can serve as non-toxic and eco-friendly natural dyes for the demonstration of cellular and tissue morphology.
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