Hainan's betel nut processing industry continues to develop,and the yield has reached 231000 t. There are some problems in betel nut industry such as unreasonable initial processing layout,processing capacity surp...Hainan's betel nut processing industry continues to develop,and the yield has reached 231000 t. There are some problems in betel nut industry such as unreasonable initial processing layout,processing capacity surplus,and deep processing industry lag. It is suggested that we should guide the initial processing layout of betel nut according to local conditions,and carry out overall deep processing planning of betel nut; support betel nut deep processing plant in the main producing areas,establish betel nut initial processing and deep processing serial production line,and develop new betel nut product; build betel nut production,processing,transport and marketing information database and market information early warning mechanism,and improve betel nut processing information service platform to timely provide information services and continuously develop betel nut industry.展开更多
In 2014,the betel nut planting area was 94000 ha,betel nut yield reached 231000 t,and the annual processing capacity of green standard betel nut drying equipments reached 677400 t in Hainan Province.The yellows in bet...In 2014,the betel nut planting area was 94000 ha,betel nut yield reached 231000 t,and the annual processing capacity of green standard betel nut drying equipments reached 677400 t in Hainan Province.The yellows in betel nut plantation have posed a serious threat to the development of betel nut industry,and the initial processing plants of betel nut are scattered,with low benefits.It is recommended to establish ecological betel nut plantations,use nutrition regulation to prevent betel nut yellows,and develop integrated betel nut processing plants to promote the sustainable development of betel nut industry.展开更多
The betel nut planting area and yield in Hainan have reached 94000 ha and 231000 t,respectively.There are some problems in betel nut planting such as dispersed cultivation,irrational planting layout,excessively dense ...The betel nut planting area and yield in Hainan have reached 94000 ha and 231000 t,respectively.There are some problems in betel nut planting such as dispersed cultivation,irrational planting layout,excessively dense planting and serious betel nut yellow leaf disease.For the sustainable development of Hainan betel nut,it is necessary to focus on building the disease-resistant betel nut plantation,so as to prevent and control the occurrence and spread of betel nut yellow leaf disease;transform the low-yield betel nut plantation,and strengthen betel nut production management,in order to improve betel nut yield and promote sustainable development of betel nut industry.展开更多
The developmental status of the betel nut industry is introduced, including cultivation situation, processing and development situation, and consumer market situation. The result shows that the cultivation of betel nu...The developmental status of the betel nut industry is introduced, including cultivation situation, processing and development situation, and consumer market situation. The result shows that the cultivation of betel nut in Hainan Province develops rapidly and the primary processing of betel nut has formed certain scale, but the deep processing of betel nut is backward. Except for the mino amount of the betel nuts consumed by Hainan Island, a large majority of the betel nuts are processed into dry fruit to sell to Hunan Province to reprocess. The problems exist in the development of betel nut industry in Hainan Province are analyzed, covering blind cultivation, extensive management, backward processing, lagged new product development and the single and concentrated consumer market. The strategic choice of developing the betel nut industry of Hainan Province is analyzed as well. Hainan Province should carry out the green, sustainable, diversified, cooperative and export-oriented industrial developmental strategy.展开更多
The present work is an attempt to develop bio-based hybrid composites by incorporating Betel nut Fiber(BF)and Chicken feather Fiber(CF)at different ratios in modified soybean oil matrix by compression molding techniqu...The present work is an attempt to develop bio-based hybrid composites by incorporating Betel nut Fiber(BF)and Chicken feather Fiber(CF)at different ratios in modified soybean oil matrix by compression molding technique.The ratio of the fiber and resin was taken as 30:70.Epoxidised soybean oil(ESO)was modified by using methacrylic acid and methacrylic anhydride.The ratio of CF and BF was varied from 2:1 to 1:2 respectively.The influence of hybrid fibers and fiber ratio on various properties of the composites was investigated.The obtained results showed that composites prepared with 1:1 ratio of CF and BF exhibited highest tensile strength compared to the other composites prepared by using different ratios of CF and BF.The surface morphology of the composites was studied by Scanning Electron Microscopy(SEM),where surface roughness was found to be decreased after incorporation of hybrid fibers.Thermogravimetric analysis was carried out to study the behaviour of the composites at high temperature,where thermal stability was found to enhance for hybrid composites compared to the composites prepared with single fibers.Also properties like water vapour uptake capacity and volumetric swelling were measured and found to be decreased for the hybrid composites.An overall improvement in properties was observed for composites having 1:1 ratio of CF:BF.Hence,it is concluded that 1:1 weight ratio of CF and BF is the optimum mixing ratio to enhance the various properties of the hybrid composites.展开更多
基金Supported by Special Project for Research,Development,Demonstration and Extension of Applied Technology in Hainan Province(ZDXM2014101)
文摘Hainan's betel nut processing industry continues to develop,and the yield has reached 231000 t. There are some problems in betel nut industry such as unreasonable initial processing layout,processing capacity surplus,and deep processing industry lag. It is suggested that we should guide the initial processing layout of betel nut according to local conditions,and carry out overall deep processing planning of betel nut; support betel nut deep processing plant in the main producing areas,establish betel nut initial processing and deep processing serial production line,and develop new betel nut product; build betel nut production,processing,transport and marketing information database and market information early warning mechanism,and improve betel nut processing information service platform to timely provide information services and continuously develop betel nut industry.
基金Supported by Special Project of Applied Technology Research,Development,Demonstration and Promotion in Hainan Province(ZDXM2014101)
文摘In 2014,the betel nut planting area was 94000 ha,betel nut yield reached 231000 t,and the annual processing capacity of green standard betel nut drying equipments reached 677400 t in Hainan Province.The yellows in betel nut plantation have posed a serious threat to the development of betel nut industry,and the initial processing plants of betel nut are scattered,with low benefits.It is recommended to establish ecological betel nut plantations,use nutrition regulation to prevent betel nut yellows,and develop integrated betel nut processing plants to promote the sustainable development of betel nut industry.
文摘The betel nut planting area and yield in Hainan have reached 94000 ha and 231000 t,respectively.There are some problems in betel nut planting such as dispersed cultivation,irrational planting layout,excessively dense planting and serious betel nut yellow leaf disease.For the sustainable development of Hainan betel nut,it is necessary to focus on building the disease-resistant betel nut plantation,so as to prevent and control the occurrence and spread of betel nut yellow leaf disease;transform the low-yield betel nut plantation,and strengthen betel nut production management,in order to improve betel nut yield and promote sustainable development of betel nut industry.
基金Supported by the Hainan Key Scientific and Technological Project(090138)National Engineering Center of Tropical Crops
文摘The developmental status of the betel nut industry is introduced, including cultivation situation, processing and development situation, and consumer market situation. The result shows that the cultivation of betel nut in Hainan Province develops rapidly and the primary processing of betel nut has formed certain scale, but the deep processing of betel nut is backward. Except for the mino amount of the betel nuts consumed by Hainan Island, a large majority of the betel nuts are processed into dry fruit to sell to Hunan Province to reprocess. The problems exist in the development of betel nut industry in Hainan Province are analyzed, covering blind cultivation, extensive management, backward processing, lagged new product development and the single and concentrated consumer market. The strategic choice of developing the betel nut industry of Hainan Province is analyzed as well. Hainan Province should carry out the green, sustainable, diversified, cooperative and export-oriented industrial developmental strategy.
基金The author,Gitashree Gogoi greatly acknowledged University Grants Commission(UGC),New Delhi,for providing the financial assistance(as fellowship).Grant number-NFO-2018-19-OBC-ASS-75119.
文摘The present work is an attempt to develop bio-based hybrid composites by incorporating Betel nut Fiber(BF)and Chicken feather Fiber(CF)at different ratios in modified soybean oil matrix by compression molding technique.The ratio of the fiber and resin was taken as 30:70.Epoxidised soybean oil(ESO)was modified by using methacrylic acid and methacrylic anhydride.The ratio of CF and BF was varied from 2:1 to 1:2 respectively.The influence of hybrid fibers and fiber ratio on various properties of the composites was investigated.The obtained results showed that composites prepared with 1:1 ratio of CF and BF exhibited highest tensile strength compared to the other composites prepared by using different ratios of CF and BF.The surface morphology of the composites was studied by Scanning Electron Microscopy(SEM),where surface roughness was found to be decreased after incorporation of hybrid fibers.Thermogravimetric analysis was carried out to study the behaviour of the composites at high temperature,where thermal stability was found to enhance for hybrid composites compared to the composites prepared with single fibers.Also properties like water vapour uptake capacity and volumetric swelling were measured and found to be decreased for the hybrid composites.An overall improvement in properties was observed for composites having 1:1 ratio of CF:BF.Hence,it is concluded that 1:1 weight ratio of CF and BF is the optimum mixing ratio to enhance the various properties of the hybrid composites.
