Utilization Of Yellow Ginger (Curcuma Longa) As An Organic Pigment/
Alfrancis M. Bellosillo, Mark Harvey M. Espiritu, Joyce L. Francisco and Omar Ali A. Khalifa.--
- Technological University of the Philippines, Manila. March 2019
- ix, 55 pages. 29 cm
Bachelor's thesis
College of Industrial Technology.--
Includes bibliographic references and index.
This project entitled “Utilization of Yellow Ginger (Curcuma Longa) as an Organic Pigment” was developed to provide an alternative source of pigment colorant. The Yellow Ginger is very affordable and is locally available. This innovation seeks to help the ink manufacturing industry lessen the cost of raw materials and save the cost of production. The raw materials went through the process of blending, extraction, and drying to produce an organic pigment. The organic pigment underwent the UV-VIS Spectroscopy test to find out if the pigment reached the right amount of color in the visible spectrum. The viscosity of the pigment was being observed using the Engler Method which was found to be moderate. The acceptability performance of the produced pigment was evaluated by a group of experts in the field of printing in terms of functionality, workability, durability, aesthetics, economy, and safety. Evaluators were composed of six (6) faculty/professionals, and ten (14) students are taking up Graphic Arts and Printing Technology course in the university. The mean ratings of the evaluation in the seven criteria are 4.55 for functionality, 4.04 for aesthetic, 4.57 for workability, 4.58 for durability, 4.75 for economy, 4.64 for safety and 4.28 for saleability. The innovation earned the highest rating for economy as its proven that the process of acquiring and using these ingredients was found to be cheap and inexpensive. The produced ink pigments were shown to be useful and practical as an alternative pigment for producing colorants