Evaluation of Turmeric extract for human spermatozoa morphology assessment in combination with haematoxylin

Abstract

Introduction: This study aims to assess the effectiveness of utilising Turmeric extract as a sustainable alternative to synthetic Eosin dye in the commonly employed Haematoxylin and Eosin (H and E) staining method for analysing human spermatozoa morphology. While H and E staining yields high-quality results, the synthetic nature of Eosin raises concerns about its environmental impact. By exploring the use of Turmeric extract as a substitute, this research aims to provide a more eco-friendly solution without compromising the staining quality. Method: A solution of Turmeric extract, comprising 15 grams per 100 ml, is formulated using 70% alcohol. This alcoholic extract is substituted for Eosin  in the process of H and E staining. In the experiments, two sets of semen smears are prepared. One set is subjected to H and E staining, while the other set undergoes staining with Haematoxylin and Turmeric (H and T). The quality of staining on each slide is assessed based on various parameters, including the background of the smear, as well as the distinct sections of the sperm, namely the head, neck, body, and tail. Result and conclusion: Turmeric confers a unique coloration to the stained spermatozoa, yielding a vivid and distinguishable visual effect that contrasts with the conventional pink staining achieved through the use of Eosin. In both staining techniques, the morphology of the spermatozoa is clearly observable and distinguishable, albeit with Eosin providing enhanced contrast and sharpness. The exceptional staining capacity of Turmeric paves the path for the exploration of natural alternatives to supplant synthetic dyes.