Nugriani, Nandhita Octavia and Widiputri, Diah and Yusri, Silvya (2019) Antioxidant Stability Testing on Liquid and Powder Eichhornia Crassipes Extract. Bachelor thesis, Swiss German University.

Preview	Text Nandhita Nugriani 11504027 TOC.pdf Download (1MB) | Preview
	Text Nandhita Nugriani 11504027 1.pdf Restricted to Registered users only Download (446kB)
	Text Nandhita Nugriani 11504027 2.pdf Restricted to Registered users only Download (474kB)
	Text Nandhita Nugriani 11504027 3.pdf Restricted to Registered users only Download (1MB)
	Text Nandhita Nugriani 11504027 4.pdf Restricted to Registered users only Download (1MB)
	Text Nandhita Nugriani 11504027 5.pdf Restricted to Registered users only Download (245kB)
Preview	Text Nandhita Nugriani 11504027 Ref.pdf Download (787kB) | Preview

Abstract

Water hyacinth or Eicchornia crassipes is a free-floating aquatic plant and is easily found in swamps or rivers, especially in Indonesia. The rapid growth of water hyacinth can disrupt the aquatic environment, thus water hyacinth is categorized as one of the worst weed. The challenge is not on how to eliminate the number of this weed, but on how to take advantage by the presence of this water plant. Water hyacinth is known to contain high phenolic content and antioxidant activity. Water hyacinth was extracted using 96% ethanol/water with mass to solvent ratio of 1:30 at 3 different temperatures (30℃, 40℃, 50℃). Spray drying was conducted to produce extract powder with the addition of encapsulating agents. The stability of liquid and powder extract was compared based on the TPC and antioxidant activity. The highest TPC was obtained from extraction at 30℃ whereas the highest antioxidant activity was obtained from extraction at 50℃. In powder extract, the highest TPC and antioxidant activity was obtained from powder with ratio 2:1 of TSS to encapsulating agents. The stability was performed under different storage conditions; room and refrigerator temperature. The degradation of TPC was faster in room temperature compared to refrigerator temperature.

Item Type:	Thesis (Bachelor)
Uncontrolled Keywords:	Water Hyacinth ; Eichhornia Crassipes ; Total Phenolic Content ; Total Antioxidant Activity ; Stability Testing
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Life Sciences and Technology > Department of Pharmaceutical Engineering
Depositing User:	Adityatama Ratangga
Date Deposited:	18 May 2020 05:01
Last Modified:	18 May 2020 05:01
URI:	http://repository.sgu.ac.id/id/eprint/411

Actions (login required)

View Item