A domestic microwave oven (Samsung microwave oven; 700 W and 2450 MHz frequency) was used for the isolation of lignin from bagasse. Twenty gm of bagasse was soaked in 200 mL 0.1 N HCl for 24 h to remove the acid-soluble cellulose; this is residue 1. Further, residue 1 was added in an aqueous solution of 3 g NaOH and 1% H2O2. Then, it was irradiated in the microwave oven at 400 W for 30 min. It was filtered again to remove the carbon fibres, followed by acidifying at a different pH to separate out the cellulose and lignin, as given in Fig. 1 .
Microwave oven
Manufactured by Samsung
Sourced in India
The Samsung microwave oven is a kitchen appliance primarily used for the rapid heating and cooking of food. It utilizes electromagnetic radiation to generate heat within the food, allowing for efficient and convenient cooking. The core function of the microwave oven is to provide a fast and energy-efficient means of preparing meals or reheating various food items.
Automatically generated - may contain errors
Lab products found in correlation
3 molecular sieve, by Merck Group (1 mentions)
Chloroform, by Merck Group (1 mentions)
Glycolic acid, by Merck Group (1 mentions)
Tin 2 chloride dihydrate, by Merck Group (1 mentions)
Dl lactic acid, by Thermo Fisher Scientific (1 mentions)
Methanesulfonic acid, by Merck Group (1 mentions)
1 1 1 3 3 3 hexafluoro 2 propanol hfip, by Fluorochem (1 mentions)
5 protocols using microwave oven
1
Microwave-assisted Lignin Isolation from Bagasse
2
Microwave-Assisted Extraction of Plant Parts
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One gram powder of root, stem, leaf, fruit pulp and seeds were extracted individually with 100 ml methanol in conical flasks. All flasks were exposed for 5 or 10 min in a microwave oven (Samsung, India) at 180 W. Cooling at regular intervals (2 min) was done to avoid bumping and repeated exposures were allowed to complete the required exposure.
3
Synthesis of Polylactic Acid Precursors
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Glycolic acid, chloroform, tetrahydrofuran (THF), diphenylether, 3 Å molecular sieves and two catalysts (tin(II) chloride dihydrate and methanesulfonic acid), were purchased from Sigma Aldrich (Seoul, Korea) and were used as received. dl -lactic acid (predominantly containing l -isomer) in 85% to 90% aqueous solutions were acquired commercially from Alfa Aesar (Fisher Scientific Ltd., Incheon, Korea). 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) with a 99% purity was purchased from Fluorochem Ltd. (Derbyshire, UK), and was used as received. The 3 Å molecular sieves was activated using microwave oven (Samsung, Seoul, Korea) prior to use.
4
Melting Point and NMR Analysis
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The melting point of the synthesized product was measured by using the melting point apparatus Stuart SMP10 without correction. The 1 H-NMR was measured on Jeol-500 MHz ( 1 H; 500 MHz) instruments. The reaction was carried out using a microwave oven assisted (Samsung). Product of reaction was analyzed by using GCMS: GC/MS-MSD 7890A/5975C (Agilent Technologies) with the condition was in accordance with our previous reported (Komala, et al., 2018; Komala et al., 2017) .
5
Cheese Meltability Evaluation Method
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UF processed cheese meltability was measured with the modified Schreiber test. The cheese samples (4.8 mm thickness and 41 mm diameter) were put in some Petri dishes and heated in the microwave oven (Samsung, South Korea) for 60s at 300 W, and then cooled. The expansion of the samples was measured along 6 lines that were marked in concentric circles (Mleko & Foegeding, 2000) . The Schreiber meltability was an average of 3 values for the triplicate samples (at a random scale of 0-10 units).
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