Characterization of edible film of lesser yam (Dioscorea esculenta Lour. Burkill) starch-plasticizer added with potassium sorbate or cinnamon oil and its utilization as edible coating to strawberry (Fragaria ananassa)

Decyree, Jessica (2017) Characterization of edible film of lesser yam (Dioscorea esculenta Lour. Burkill) starch-plasticizer added with potassium sorbate or cinnamon oil and its utilization as edible coating to strawberry (Fragaria ananassa). Bachelor thesis, Universitas Pelita Harapan.

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

Download (3MB)
[img] Text (Abstract)
Abstract.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (388kB)
[img] Text (ToC)
ToC.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (409kB)
[img] Text (Chapter 1)
Chapter 1.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (395kB)
[img] Text (Chapter 2)
Chapter 2.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (1MB)
[img] Text (Chapter 3)
Chapter 3.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (5MB)
[img] Text (Chapter 4)
Chapter 4.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (6MB)
[img] Text (Chapter 5)
Chapter 5.pdf
Restricted to Registered users only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (362kB)
[img] Text (Bibliography)
Bibliography.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (438kB)
[img] Text (Appendices)
Appendices.pdf
Restricted to Repository staff only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (24MB)
[img] Text (Publication Agreement)
Publication Agreement.pdf
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (1MB)

Abstract

Lesser yam starch has been used as base for edible film and coating. Potassium sorbate and cinnamon are known as strong antimicrobial agent. This research was aimed to investigate physical and mechanical characteristics of edible film from lesser yam starch-plasticizer formulations added with sorbate or cinnamon oil, and its application as coating to strawberries. In general, incorporation of either sorbate (0.15, 0.20, or 0.25%) or cinnamon oil (0.30, 0.50, or 0.70%) at higher concentration resulted in reduced tensile strength and elongation percentage with higher water vapor transmission rate. For potassium sorbate, the formulations chosen were 6.50% starch-5.50% sorbitol-0.15% sorbate (high tensile strength), 6.50% starch-5.50% sorbitol-0.25% sorbate (high elongation), and 4.50% starch-5.50% sorbitol-0.15% sorbate (low water vapor transmission rate) whereas for oil category, the selected combinations were 6.50% starch- 5.50% sorbitol-0.50% oil (high tensile strength), 4.50% starch-5.50% sorbitol- 0.30% oil (high elongation), and 6.50% starch-5.50% sorbitol-0.30% oil (low water vapor transmission rate). The selected combinations were applied as edible coating on strawberry assigned at two storage conditions: room temperature (28- 30 °C) and refrigeration temperature (5-6 °C). At room temperature storage, control samples (uncoated and coated strawberries with 4.50% starch-5.50% sorbitol) had shelf life only for 2 and 4 days, respectively. Strawberries coated with addition of sorbate exhibited shelf life of 5-6 days, and strawberries coated with addition of cinnamon oil had shelf life for 5-11 days. At refrigeration storage, shelf life of controls was 9 and 18 days while coating formulations incorporated with sorbate further prolonged shelf life of strawberries for 19-21 days, and the ones treated with cinnamon oil had shelf life for 25-26 days. Therefore, all coated strawberries had longer shelf life and more retained strawberries’ quality including lower weight loss, higher hardness, and lower microbial count, but in a higher degree for strawberries coated with incorporation of antimicrobial agent.

Item Type: Thesis (Bachelor)
Creators:
CreatorsNIMEmail
Decyree, JessicaNIM1305020004UNSPECIFIED
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorPokatong, Wilbur Donald RaymondNIDN0002106402UNSPECIFIED
Uncontrolled Keywords: Cinnamon oil; edible coating; edible film; potassium sorbate; strawberry
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 13 not found.
Date Deposited: 16 Oct 2018 07:54
Last Modified: 16 Oct 2020 03:18
URI: http://repository.uph.edu/id/eprint/1621

Actions (login required)

View Item View Item