Pengaruh Jenis Pengemas dan Suhu Penyimpanan Terhadap Mutu Biji dan Minyak Jarak Pagar (Jathropha curcas L )
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Condition and Storage Temperature on the Quality of Jatropha Seed 1Jathropha
curcas 2.3 and Its Oil.
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Physic nut (Jatropha curcas 2 ) has been widely studied as source of
biodiesel due to among other things its high oil content and its oil properties as
biodiesel. However, the seed and its oil deteriorate during storage. One of the
sign of the deterioration is the increase of acidity. The research consist of two
activities. The first activity was conducted to evaluate the use of different
packaging materials and storage condition on the properties of seed and physic
nut oil. The seeds were stored in three types of plastic bags, i.e. paranet,
polypropylene and nylon bags. The seeds packed in polypropylene and nylon bags
were stored under normal and vacuum condition. The seeds were then stored at
room temperature and 5 °C for 30 days. The results showed that seeds stored in
plastic bag under normal and vacuum condition still meet Indonesian Standard
for jatropha seeds after 30 days of storage. The best packaging material was
polypropylene. Therefore polypropylene bag was used in the second activity. The
aim of second activity was to study quality of seed and physic nut oil changes
during stored. Seeds which it packed in paranet was stored at room temperature,
while seeds which it packed in polypropylene was stored at room temperature and
5 oC. The results showed that quality deterioration of jatropha seed as shown the
free fatty acid content was more quickly, when seeds packed in paranet.
Keywords : Jatropha curcas 2., paranet, polypropylene, nylon, seed and oil
quality, acidity, Indonesian Standard
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Condition and Storage Temperature on the Quality of Jatropha Seed 1Jathropha
curcas 2.3 and Its Oil.
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Physic nut (Jatropha curcas 2 ) has been widely studied as source of
biodiesel due to among other things its high oil content and its oil properties as
biodiesel. However, the seed and its oil deteriorate during storage. One of the
sign of the deterioration is the increase of acidity. The research consist of two
activities. The first activity was conducted to evaluate the use of different
packaging materials and storage condition on the properties of seed and physic
nut oil. The seeds were stored in three types of plastic bags, i.e. paranet,
polypropylene and nylon bags. The seeds packed in polypropylene and nylon bags
were stored under normal and vacuum condition. The seeds were then stored at
room temperature and 5 °C for 30 days. The results showed that seeds stored in
plastic bag under normal and vacuum condition still meet Indonesian Standard
for jatropha seeds after 30 days of storage. The best packaging material was
polypropylene. Therefore polypropylene bag was used in the second activity. The
aim of second activity was to study quality of seed and physic nut oil changes
during stored. Seeds which it packed in paranet was stored at room temperature,
while seeds which it packed in polypropylene was stored at room temperature and
5 oC. The results showed that quality deterioration of jatropha seed as shown the
free fatty acid content was more quickly, when seeds packed in paranet.
Keywords : Jatropha curcas 2., paranet, polypropylene, nylon, seed and oil
quality, acidity, Indonesian Standard
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