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.--

Bachelor's thesis

College of Industrial Technology.-- Bachelor of Technology major in Graphic Arts and Printing Technology: Technological University of the Philippines, Manila. 2019

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