The Quality of Candle Nut(Aleurites moluccana (L.)Willd. ) Stored under Controlled Atmosphere
The effects of carbon dioxide on fungal populations, lipid and free fatty acid(FFA) contents of shelled broken candle nut （Aleurites moluccana （L.) Willd.) were investigated together with moisture contents. As much as 300 g of shelled broken candle nut with initial moisture content of 5.4% were placed in a threeliter jar. CO2 contents used were 10,30,50 and 70% in air,respectively.As control,air was incorporated into the jar instead of CO2. The candle nuts were stored for 30,60 and 90 days,respectively,at 25 28℃ and at relative humidity of 60% 80%. Three replicates were used for each treatment and the control. The moisture contents were relatively constant during storage. The lowest moisture content(5.3% w. w)occurred at 70% CO2 content after 90 days of storage, while the highest moisture content(5.5% w. w)was in the control after 60 days of storage. Total fungal population decreased with the increase of CO2 contents. After 90 days of storage, the lowest total fungal population(6.7 x 10 cfu/g w. w)occurred at 70% CO2content, but it was not significantly different with that of 50% CO2content(4.5 x l02 cfu/g w. w)and 30% CO2 content(1.2 x 105 cfu/g w. w). Although the lowest lipid content(46.38% w. w) occurred at 70% CO2content after 90 days of storage, it was not significantly different with that of 50% CO2content(51.20% w. w). FFA contents increased with the increase of CO2 content. The lowest FFA content(2.94% w. w)oecurred at 70% CO2content after 90 days of storage and it was not significantly different with that of 50% CO2content(3. 93% w.w). Storage of shelled broken candle nuts up to 90 days can be carried out using 50% CO2content.
candle nuts controlled atmosphere quality
Okky Setyawati Dharmaputra Hadi Karia Purwadaria Syarip Lambaga
SEAMEO BIOTROP, P.O.Box 116, Bogor, Indonesia and Faculty of Mathematics and Natural Sciences,Bogor Faculty of Agricultural Technology, Bogor Agricultural University, Bogor, Indonesia
国际会议
成都
英文
200-203
2008-09-21（万方平台首次上网日期，不代表论文的发表时间）