Fabrication of foam-like oil sorbent from polylactic acid and Calotropis gigantea fiber for effective oil absorption

2021 ◽  
Vol 278 ◽  
pp. 123507
Author(s):  
Weilong Xiao ◽  
Bihui Niu ◽  
Min Yu ◽  
Changduo Sun ◽  
Luhan Wang ◽  
...  
Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2273
Author(s):  
Farah Eryssa Khalid ◽  
Siti Aqlima Ahmad ◽  
Nur Nadhirah Zakaria ◽  
Noor Azmi Shaharuddin ◽  
Suriana Sabri ◽  
...  

Imperata cylindrica, often known as cogon grass, is a low-cost and useful sorbent for absorbing oil and optimising processes. The effects of temperature, time, packing density and oil concentration on oil absorption efficiency were investigated and optimised utilising one-factor-at-a-time (OFAT) and response surface methodology (RSM) approaches. Temperature and oil concentration are two important variables in the oil absorption process. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) analysis were used to characterise cogon grass. After treatment and oil absorption, the FTIR method indicated new formation and deformation of functional groups, while SEM revealed changes in the surface and texture of cogon grass, including a roughened and jagged surface. Validation of the RSM model yielded 93.54% efficiency with 22.45 mL oil absorbed at 128 °C temperature and 36 (v/v)% oil concentration while keeping packing density and time constant at 30 min and 0.20 g/cm3, respectively. This study may provide an insight into the usefulness of a statistical approach to maximise the oil absorption of cogon grass as an oil sorbent.


Cellulose ◽  
2019 ◽  
Vol 26 (6) ◽  
pp. 3923-3933 ◽  
Author(s):  
Weilong Xiao ◽  
Ningfen Wang ◽  
Bihui Niu ◽  
Chenxi Fu ◽  
Lei Zhou ◽  
...  

2019 ◽  
Vol 2 (2) ◽  
pp. 115-120
Author(s):  
Karissha Fritzi Della ◽  
Mutiara Pratiwi ◽  
Purwa Tri Cahyana ◽  
Maria DPT Gunawan-Puteri

Fried food is convenient for many people due to its pleasant texture and taste. On the other hand, it comes with the risk of high oil absorption which might lead to certain health problems. Resistant starch (RS) has been known to have a functionality of reducing oil absorption. Three different types of banana: Kepok (Musa paradisiaca formatypica), Raja Bulu (Musa paradisiaca L.) and Ambon (Musa paradisiaca L. var sapientum) were evaluated on its performance when utilized as source of resistant starch especially on their application in reducing oil absorption in fried food. Tempeh was used as the food model. Banana starch (RS2) was isolated through water alkaline extraction process, continued with modification process through three repeated cycles of autoclaving-cooling process to obtain the RS3. RS3 was added into the batter coating formulation at three substitution ratios (10%, 30% and 50%) and then used to coat tempeh before frying. Evaluation of resistant starch in batter and battered productwas conducted on the following parameters: fat content, water retention capacity (WRC), coating pick up and sensory analysis. The result of this study revealed that Raja Bulu showed the most effective result on reducing oil absorption in the food tested. In the three bananas used, the ratio of 50% performed best in coating pick up (highest), WRC (highest) and fat content(lowest) parameters, but not significantly different with the 30% ratio. In terms of sensory acceptance, using Raja Bulu as the selected banana type, 30% of substitution ratio was significantly more preferable by the panelists in crispness, oiliness, and overall acceptance attributes compared to control and other substitution ratios.


Author(s):  
Nobuyuki Kawashima ◽  
Shinji Ogawa ◽  
Shoji Obuchi ◽  
Mitsunori Matsuo ◽  
Tadashi Yagi
Keyword(s):  

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