Promising ultrasonic irradiation pretreatment for enzymatic hydrolysis of Kenaf

Recent innovations of ultrasound green technology in herbal phytochemistry: A review

“… [ [41] , [42] ] Chinese liquorice Gancao Kenfa Glycyrrhiza uralensis Turpiniae folium Hibiscus cannabinus Ultrasonic probe sonotrode system Polysaccharide thermosonication extraction and modification Polysaccharide, Cellulose 25 0–600 10–60 25–100 For glycyrrhizauralensis as thermal stable polysaccharide, the optimal extraction parameters of glycyrrhiza polysaccharide is 600 W for 60 min at 70 °C. And for turpiniae folium is 200 W for 30 min at 30 °C [ [43] , [44] , [45] ] Citrus limon leaves Citrus aurantium Ultrasonic probe sonotrode system Sonication for nanocubes and nanosphere nanocomposite Phytochemical mixture 20 250 29 In this work, ultrasound synthesized an efficient photocatalyst nano-cubes and nanospheres by using C. limon LE and Ag:CdO. In which, C. limon phytocomponents played an effective role as reducing and stabilizing agent.…”

“…For cellulose carbohydrate molecule, Nakayama and Imai [ 45 ] found that US pretreatment (20 kHz, 200 W, 10 min) can enhance the enzymatic hydrolysis of kenaf herb ( Hibiscus cannabinus ) cellulose to produce glucose sugar. In which, the authors reported that US induced a higher association of cellulase and cellulose by removing the covering materials on the kenaf cellulose, as could be seen in Fig.…”

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Fig. 5 Scanning electron microscope image of Kenaf: (a) Before ultrasonic irradiation (b) After ultrasonic irradiation (20 kHz, 200 W, 10 min) [ 45 ] (License Number: 4958670625442).

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A comprehensive review on pre-treatment strategy for lignocellulosic food industry waste: Challenges and opportunities

“…The biomass suspension is irradiated for 10 minutes with ultrasonic radiation at 20 kHz and 200 KW before enzymatic treatment. Nakayama and Imai (2013) reported the increase in adsorption of cellulase when the authors used ultrasonic pre-treated Kenaf leaves for enzymatic hydrolysis. Employing pre-treatment designed by augmenting ionic liquids and ultra-sonication of rice straw.…”

Current achievements in the mechanically pretreated conversion of plant biomass

“…Examples of the generally accepted methods of preliminary treatment have been included in several reviews (Alvira, Tomás‐Pejó, Ballesteros, & Negro, ; Z. Fang, ; Galbe & Zacchi, ; P. Kumar, Barrett, Delwiche, & Stroeve, ). The most popular methods include dissolution by chemical reagents (Lloyd & Wyman, ; Yu et al, ) or organic solvents (X. Pan et al, ), steam treatment, steam explosion treatment, ammonia fibre explosion (Teymouri, Laureano‐Perez, Alizadeh, & Dale, ), autohydrolysis (Ertas, Han, Jameel, & Chang, ), mechanical pretreatment (Barakat et al, ), thermomechanical pretreatment (M. Pan, Zhou, Zhou, & Lian, ), ultrasonic pretreatment (Nakayama & Imai, ), microwave irradiation (Moretti et al, ), irradiation with electrons (Bak et al, ), gamma irradiation (Yin & Wang, ), and biological pretreatment (Saritha, Arora, & Lata, ).…”