∗
Increased Demand of Biofuels vs limited fossil
fuel resources
World Fossil Fuels Consumption 1950-1998 (Worldwatch Institute)
Background
∗
Indonesia has been net-importers of fossil fuel
∗
Indonesia has abundant resources (very long
coastline)
∗
Indonesia located in the tropics
Background
-
Wood - animal fat
-
Hay/leafs/grass - vegetable oil
-
tubers
- microbial oil
-
organic waste - used oil
-
Anorganic waste
-
Etc.
Bioenergy resource:
- To produce bioethanol as fuel
∗
To obtain information on seaweed chemical content
∗
To obtain information on factors influencing the production of
bioethanol from seaweeds
Aims of Research:
•
Green Seaweeds, red seaweeds
(Rhodophyceae), brown seaweeds
(Phaeophyceae)
•
Polysaccharide content: cellulose, alginate
•
Wild seaweed:
Ulva
, Rhodopyceae sp., etc.
•
Commercial seaweeds:
Eucheuma cottoni,
Glacillaria, Sargassum sp.
-
(scienceclarified.com)
22-Sep-11
2
Ulva compressa
Ulva = sea lettuce
Ulva casso
Some of wild seaweeds
Rhodophyta =
rumput laut
merah
∗
Available abundantly in nature, gratis
∗
cultivatable, relatively fast growing and do not
compete with food
∗
Indonesia has 1,1 million ha coastal resources, only
20% exploited
Advantages of Seaweeds
Sanur Beach
Results
NO Kode % lemak Kadar pati g/L
Protein (%)
Species with high content of
crude fibre, starch and fat
PRELIMINARY STUDY ON THE PRODUCTION OF
BIOETHANOL FROM
Codium geppiorum
USING
ACTIVATED LIMESTONE FROM NUSA PENIDA
Raw Material of
BIOETHANOL
Codium geppiorum
0
10
20
30
40
50
60
70
Karbohidrat
Lemak
69.1
5.15
P
e
rs
e
n
ta
se
Kandungan
Content of
Codium geppiorum
Karbohidrat
Lemak
PROCESS
????
(Puspaningrat, dkk., 2011)
HASIL PENELITIAN
Hasil Bioetanol dari Alga
Codium geppiorum
Kadar Etanol yang Dihasilkan pada Proses Pembuatan Bioetanol dari
Codium geppiorum
dengan Variabel
Konsentrasi Ragi dan Waktu Fermentasi yang Berbeda
HASIL PENELITIAN
Hasil Dehidrasi Etanol dengan Batu Kapur Teraktivasi
22-Sep-11
4
Hasil hidrolisis Glacilaria dengan H2SO4
Hasil hidrolisis Glacilaria dengan HCl
Hasil hidrolisis Glacilaria dengan
selulase
Kromatogram
alkohol hasil
fermentasi
Catatan:
- produsen:
Saccharomyces cereviceae
- T: suhu kamar
- T: 5 hari
∗
Yenni Ciawi (FT)
∗
NGAM Dwi Adhi Suastuti (MIPA Kimia)
∗
Wiwik Susanah Rita (MIPA Kimia)
∗
Made Pharmawati (MIPA Biologi)
∗
Wahyu Dwijani Sulihingtyas (MIPA Kimia)
∗
Yan Ramona (MIPA Biologi)
∗
Putu Widayanti (S1 Kimia)
∗
I Wayan Karta (S2 Kimia)
∗
Putu Widyastuti (S2 Kimia)
∗
Yohannes (S1 Kimia)
∗
Yuliani Anaawang (S2 Biologi)
∗
Novy (S2 Biologi)
Anggota Penelitian:
