Proceedings of MatricesFor IITTEP – ICoMaNSEd 2015
ISBN: 978-602-74204-0-3
Chemistry Page 118
difference in the average water content according to the adsorbent. The significant difference of the averages looks from the value of probability p 0.05, where between adsorbent
controls with active carbon, they all meet the value of probability p 0.05. This shows that there are the significant differences for purification treatment with adsorbents and control of
water content in the VCO.
Figure 2. The influence of the concentration of extract of pineapple stems and adsorbent against water content
Table 2. The result of average different test with LSD on purification treatment with adsorbents against water content
I Adsorbent
J Adsorbent Average
difference I-J Significancep
Without purification Control
Active carbon adsorbent
0.504 0.000
In this experiment, the influence of the concentration of extract of pineapple stem on VCO against water content that still meet the standard quality of APCC maximum 0.5 are at
concentrations of 10 and 20 i.e. of 0,261 and 0,352.
3.3. Free fatty acid FFA
Data on the levels of free fatty acids in the VCO according to the concentration of extract of pineapple stems and adsorbents are presented in Figure 3. From the data shown in Figure 3, it
can be seen that the influence of the concentration of extracts of pineapple stem towards the levels of free fatty acids, free fatty acid levels of VCO growing along with the increasing
concentration. However, after purification using active carbon adsorbent, it can be seen to occur a significant difference. Such as water content, any free fatty acid levels decreased
significantly in the treatment of purification with active carbon adsorbent compared to without purification control. The existence of treatment with active carbon adsorbent
successfully adsorbed a number of free fatty acids, so that the levels of free fatty acids in the VCO product significantly reduced for the better quality. The results of the analysis of the
average difference with LSD test Table 3 show that there is a significance difference in average levels of free fatty acids according to the adsorbent. The significant difference of the
averages looks from the value of probability p 0.05, where between adsorbent controls with active carbon, they all meet the value of probability p 0.05. This shows that there are the
significant differences for purification treatment with adsorbents and control over the levels of free fatty acid in the VCO.
0,00 0,50
1,00 1,50
10 20
30 40
50 Wa
ter co
nte nt
Extract of pineapple stem Control
Activated carbon
Proceedings of MatricesFor IITTEP – ICoMaNSEd 2015
ISBN: 978-602-74204-0-3
Chemistry Page 119
Figure 3. The influence of the concentration of extract of pineapple stems and adsorbent against free fatty acid levels.
Tabel 3. The result of average different test with LSD on purification treatment with adsorbents against free fatty acid levels
I Adsorbent
J Adsorbent Average
difference I-J Significance
p
Without purification Control
Active carbon adsorbent
0.524 0.000
In this experiment, the influence of the concentration of extract of pineapple stem on VCO against levels of free fatty acids which still meet the standard quality of APCC maximum
0.5 is at a concentration of 10 i.e. of 0.449.
4. Conclusions
