Increasing acceptability of winged-bean (psophocarpus tetragonolobus (l.) dc.) milk by addition of stabilizer and ginger juice

Wijaya, Chiara (2014) Increasing acceptability of winged-bean (psophocarpus tetragonolobus (l.) dc.) milk by addition of stabilizer and ginger juice. Bachelor thesis, Universitas Pelita Harapan.

[thumbnail of Title] Text (Title)
Title.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (239kB)
[thumbnail of Abstract] Text (Abstract)
Abstract.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (0B)
[thumbnail of ToC] Text (ToC)
ToC.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (1MB)
[thumbnail of Chapter1] Text (Chapter1)
Chapter1.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (261kB)
[thumbnail of Chapter2] Text (Chapter2)
Chapter2.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (276kB)
[thumbnail of Chapter3] Text (Chapter3)
Chapter3.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (528kB)
[thumbnail of Chapter4] Text (Chapter4)
Chapter4.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (379kB)
[thumbnail of Chapter5] Text (Chapter5)
Chapter5.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (252kB)
[thumbnail of Bibliography] Text (Bibliography)
Bibliography.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (279kB)
[thumbnail of Appendices] Text (Appendices)
Appendices.pdf
Restricted to Repository staff only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (2MB)
[thumbnail of Publication-Agreement] Text (Publication-Agreement)
Publication-Agreement.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (363kB)

Abstract

Little attention has been devoted to employ winged bean (Psophocarpus tetragonolobus (L.) DC.) as alternative source of dietary protein due to beany flavour exposed from the processed beans. This research aimed to increase acceptability of winged-bean milk by addition of stabilizer and ginger juice. Both hot-water and steam blanching methods did not significantly affect consumer acceptability on aroma, flavour, viscosity, and overall acceptance. Evaluations for the effect of different winged beans to water ratios and stabilizer concentrations on milk stability and consumer acceptance showed that winged bean milk with 1:8 (winged beans:water) ratio and 0.01% kappa carrageenan had the lowest precipitation rate of 0.0002±0.0001 ppm/m and preferable organoleptic properties. Results of Consumer Rejection Threshold (CRT) for white, yellow, and red ginger juice concentration added into winged-bean milk were respectively 26.91%, 12.27%, and 5.57%. Formulation of 1:8 (winged beans:water) ratio, 0.01% kappa carrageenan, and 12.27% yellow ginger juice addition significantly increased acceptability of winged-bean milk. Physicochemical analysis results revealed that the resulted milk has 52.75 lightness value, viscosity of 16.18 mPa.s, pH of 6.92, total phenolic content of 0.27 mg gallic acid equivalent (GAE)/g sample, flavonoid content of 0.24 mg quercetin equivalent (QE)/g sample, antioxidant capacity of 14.53 mg vitamin C equivalent (VCE)/L sample (26.62% scavenging activity), tannin content of 0.24 mg catechin equivalent (CE)/g sample, and lethal concentration 50% (LC50) of 3630.78 ppm. The content of 10.29% total solid, 1.58% protein, and 0.88% fat made it qualified and comparable with other soy-based beverage products.
Item Type: Thesis (Bachelor)
Creators:
Creators
NIM
Email
ORCID
Wijaya, Chiara
NIM03420100072
CHEW_CHIARAWIJAYA@YAHOO.COM
UNSPECIFIED
Contributors:
Contribution
Contributors
NIDN/NIDK
Email
Thesis advisor
Kardono, Leonardus Broto Sugeng
UNSPECIFIED
UNSPECIFIED
Thesis advisor
Halim, Jeremia Manuel
NIDN0312118501
UNSPECIFIED
Additional Information: SK 34-10 WIJ i
Uncontrolled Keywords: beany odor ; crt, ginger juice ; kappa carrageenan ; rate of precipitation ; winged-bean milk
Subjects: T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Depositing User: Users 17 not found.
Date Deposited: 16 Oct 2018 07:54
Last Modified: 16 Dec 2021 07:20
URI: http://repository.uph.edu/id/eprint/1627

Actions (login required)

View Item
View Item