Microwave drying of bamboo

Prasad, Basheshar; Pandey, Krishna K.

doi:10.1007/s00107-010-0496-9

Cited by 14 publications

(5 citation statements)

References 2 publications

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“…The resulting intensive collisions then produce heat, converting electric energy to heat energy. The power per unit volume expended in this way is given by (Pan 1998):…”

Section: Reasons For Reduced Drying Stress During Mw Treatment Effectmentioning

confidence: 99%

“…Microwave technology has already been widely applied throughout wood industry for over half century. Examples include the technique of wood bending after microwave heating, lumber drying via microwave heating, and pressing systems that use microwave heating (Antti 1992;Antti and Perre 1999;Montoro and Manrique 1999;Wang and Xue 2002;Tu 2007;Prasad and Pandey 2012). And some research has focused on wood structure and water transfer in wood under the microwave heating (Daian 2011;Gašparik and Gaff 2013;Grinchik et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Drying Stress Relaxation of Wood Subjected to Microwave Radiation

He¹,

Wang²

2015

BioResources

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An effective and rapid drying stress relieving technique was developed using microwave conditioning. The process was analyzed by measuring the stress factor and moisture content gradient through the thickness of the board. The experiments showed that the drying quality of E. urophylla x E. tereticornis was improved after microwave conditioning during the wood drying process. The drying stress relaxation increased with the duration of the microwave radiation. Stress and moisture content gradient through the thickness of the board were compared and are discussed in this report.

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“…The resulting intensive collisions then produce heat, converting electric energy to heat energy. The power per unit volume expended in this way is given by (Pan 1998):…”

Section: Reasons For Reduced Drying Stress During Mw Treatment Effectmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Drying Stress Relaxation of Wood Subjected to Microwave Radiation

He¹,

Wang²

2015

BioResources

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“…Notably, drying is a key step in industrial bamboo use, and the current common drying technologies (e.g. air drying and kiln drying) can require high amounts of energy, produce large amounts of environmental pollution, and be very time consuming (Prasad and Pandey 2012). Hence, a simple, fast, efficient, and clean drying technology is greatly needed to improve the industrial processing and utilization of bamboo.…”

Section: Introductionmentioning

confidence: 99%

“…Round bamboo has a concave-convex structure in which a hollow cylindrical rod is divided into multiple segments. Bamboo walls are rich in parenchyma cells, are highly hygroscopic, and bamboo shrinks below the fiber saturation point when dry (Prasad and Pandey 2012). All these factors make it difficult to dry round bamboo to produce a quality product.…”

Section: Introductionmentioning

confidence: 99%

Effects of microwave drying on the cell wall structures of round bamboo

Yang

Zhu

et al. 2023

BioRes

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Effects of microwave irradiation on bamboo cell wall structures were studied. Microwave treatment resulted in samples exhibiting smoother surfaces, deformed parenchyma cells, and increased porosity. Microwave treatment altered microfibril orientation through the formation of hydrogen bonds. The peak at 3440 cm-1, assigned to O-H stretching, decreased. Meanwhile, intermolecular and intramolecular bonds were formed, increasing the uniformity of microfibrils. Condensation reactions in surface hydroxyl groups and the formation of intramolecular hydroxyl groups in the amorphous region under microwave irradiation also improved the fiber arrangement uniformity. After treatment, the HCH and HOC bonds were reduced and the ester bonds were broken down. The methoxy and aromatic ring hydroxyl groups were oxidized, as indicated by the increase in the absorption peak at 148 ppm. The hydroxyl groups in the amorphous region near the fiber surface decreased, as did hemicellulose content, but there was an increase in secondary crystalline fibers.

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“…Compared with traditional drying methods, it can limit the temperature caused by food hardening, crusts and coking and even burn phenomenon. The utility model has the advantages of high utilization rate, short drying time, low energy cost, etc [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Drying Characteristics and Quality of Yam Slices of Different Thickness during Microwave Intermittent Drying

Dai¹,

Qin²,

Wu³

et al. 2017

Proceedings of the 2017 7th International Conference on Advanced Design and Manufacturing Engineering (ICADME 2017)

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Abstract. Homemade batch microwave drying test apparatus using different parameters on fresh-cut alpine yam slices during microwave intermittent drying experiments, the drying characteristics of fresh-cut alpine yam slices, the dynamic model and the drying quality was studied in the paper. The results showed that the whole microwave intermittent drying process of alpine yam slices generally includes acceleration, constant speed and deceleration stages. The slice thickness have a significant impact on shrinkage characteristics, and improve slice thickness had good influence on keeping the dry volume of samples.

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Microwave drying of bamboo

Cited by 14 publications

References 2 publications

Drying Stress Relaxation of Wood Subjected to Microwave Radiation

Drying Stress Relaxation of Wood Subjected to Microwave Radiation

Effects of microwave drying on the cell wall structures of round bamboo

Drying Characteristics and Quality of Yam Slices of Different Thickness during Microwave Intermittent Drying

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