Exploring Organic Pigment Reactions: A Study on Fresh Rose Extract in Transparent Soap Formulation Article
G
Garima Singh Corresponding Author
Published: 29/06/2026
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Exploring Organic Pigment Reactions: A Study on Fresh Rose Extract in Transparent Soap Formulation

Keywords:Organic ChemistryRose ExtractNatural OxidationSynthetic Additive-FreeAction ResearchUndergraduate Laboratory.

This action research explores the chemical interaction between organic botanical extracts and a

transparent soap base within an undergraduate laboratory setting. Conducted as a student-led

practical intervention aligned with the Applied Chemistry curriculum, the study investigates the

spontaneous behavior of raw rose extract without synthetic stabilizers. The experiment utilized a

controlled ratio of 200g transparent glycerin base to 15 mL fresh Rosa indica juice. The entire

formulation process and its immediate transitions were fully observed and validated live by the

subject teacher and a peer cohort. Upon formulation, a two-stage color shift was observed: an

immediate deep green coloration due to the structural transition of natural anthocyanins

interacting with co-existing yellow flavonoids in an alkaline matrix (estimated pH 9.0–9.5). This

intermediate phase stabilized into a translucent light brown with a distinct brownish-orange hue

after a 24-hour curing period. To complete the action-research cycle, the resulting disc-shaped

soaps were evaluated via a direct hand-washing trial by a student peer cohort (N=5) immediately

upon unmolding. The findings document the natural oxidation pathway of botanical pigments,

offering a reproducible, synthetic additive-free alternative for personal care while demonstrating

the reflective learning value of faculty-supervised, classroom-based product synthesis.

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3. Svehla, G. (2012). Vogel's Qualitative Inorganic Analysis (7th ed.). Longman.

4. Zhao, L., Zhang, Y., Chen, X., & He, J. (2019). Structural transitions and colorimetric

stability of botanical anthocyanins in alkaline and neutral aqueous mediums. Journal of

Agricultural and Food Chemistry, 67(14), 3922-3930. doi.org

G
Garima Singh Corresponding Author

Affiliation

Ram Chameli Chadha Vishvas Girls College, Ghaziabad (Affiliated to CCS

University, Merrut)

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