Possibility of artocarpus heterophyllus latex as an alternative source for natural rubber

Bhadra, Sambhu; Mohan, Nitin; Parikh, Gaurang; Nair, Sujith

doi:10.1016/j.polymertesting.2019.106066

Cited by 16 publications

(15 citation statements)

References 16 publications

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“…The absorption bands that appear at 1013 and 3369 cm −1 are linked with the OH out-of-plane bending in the terminal carboxylic groups and intermolecular OH bonded to C=O groups in the polyester chains, respectively, while the peak at 1710 cm −1 indicates the appearance of a strong C=O stretching band for the carboxylic group [31] , [45] , [49] . On the other hand, the spectral fingerprints of natural latex rubber (NL) indicated characteristic absorption peaks at 2952, 2914, 2870, and 2836 cm −1 and are assigned to moderately intense C–H stretching vibration, medium C=C stretching for alkene at peak 1651 cm −1 , while the absorption peaks at 1457 cm −1 and 1375 cm -1 are attributed to carbon-hydrogen deformation for CH 2 group and carbon-hydrogen deformation for CH 3 group, respectively [10] . Therefore, it is well established that PE, PP and NL were the most dominant fibres in face mask brands.…”

Section: Resultsmentioning

confidence: 99%

COVID-19 pandemic and emerging plastic-based personal protective equipment waste pollution and management in Africa

Benson

Fred-Ahmadu

Bassey³

et al. 2021

Journal of Environmental Chemical Engineering

131

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The threat of plastic waste pollution in African countries is increasing exponentially since the World Health Organisation declared the coronavirus infection as a pandemic. Fundamental to this growing threat are multiple factors, including the increased public consumption for single-use plastics, limited or non-existence of adequate plastic waste management infrastructures, and urbanisation. Plastics-based personal protective equipment including millions of surgical masks, medical gowns, face shields, safety glasses, protective aprons, sanitiser containers, plastics shoes, and gloves have been widely used for the reduction of exposure risk to Severe Acute Respiratory Syndrome (SARS) Coronavirus 2 (SARS-CoV-2). This paper estimates and elucidates the growing plethora of plastic wastes in African countries in the context of the current SARS-CoV-2 pandemic. A Fourier transform infrared (FTIR) spectral fingerprint indicates that face masks were characterised by natural and artificial fibres including polyester fibres, polypropylene, natural latex resin. Our estimate suggests that over 12 billion medical and fabric face masks are discarded monthly, giving the likelihood that an equivalent of about 105,000 tonnes of face masks per month could be disposed into the environment by Africans. In general, 15 out of 57 African countries are significant plastic waste contributors with Nigeria (15%), Ethiopia (8.6%), Egypt (7.6%), DR Congo (6.7%), Tanzania (4.5%), and South Africa (4.4%) topping the list. Therefore, this expert insight is an attempt to draw the attention of governments, healthcare agencies, and the public to the potential risks of SARS-CoV-2-generated plastics (COVID plastic wastes), and the environmental impacts that could exacerbate the existing plastic pollution epidemic after the COVID-19 pandemic.

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Section: Resultsmentioning

confidence: 99%

COVID-19 pandemic and emerging plastic-based personal protective equipment waste pollution and management in Africa

Benson

Fred-Ahmadu

Bassey³

et al. 2021

Journal of Environmental Chemical Engineering

131

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“…Recent studies have evaluated the life cycle environmental performance of producing natural rubber from guayule, a shrub native to the southwest U.S., as a substitute for Hevea natural rubbers. Growing guayule in suitable regions of the U.S. may limit U.S. dependence on imported natural rubber [20,21]; however, the land use requirements and GHG emissions resulting from irrigation, fertilizer usage, and other agricultural activities may be intensive for the growing the crop [22]. Additionally, land for guayule production could be limited such that resulting rubber production may not meet rising demand for diverse rubber products on a global scale.…”

Section: Introductionmentioning

confidence: 99%

Bio-Based Polyisoprene Can Mitigate Climate Change and Deforestation in Expanding Rubber Production

2021

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Biomass is a promising renewable feedstock to produce polyisoprene for the rubber industry. Through metabolic engineering, sugars derived from pretreated and hydrolyzed cellulose and hemicellulose can be directly fermented to isoprene to produce rubber. Here we investigate the life cycle environmental impact of isoprene fermentation to produce bio-polyisoprene from agricultural residues (of Zea mays L.). Results show that the greenhouse gas (GHG) intensity of bio-polyisoprene (−4.59 kg CO2e kg−1) is significantly lower than that of natural rubber (Hevea brasiliensis) and synthetic rubber (−0.79 and 2.41 kg CO2e kg−1, respectively), while supporting a circular biogenic carbon economy. We found the land use intensity of bio-polyisoprene to be 0.25 ha metric ton−1, which is 84% lower than that from rubber tree plantations. We compare the direct fermentation to isoprene results with indirect fermentation to isoprene through the intermediate, methyl butyl ether, where dehydration to isoprene is required. The direct fermentation of isoprene reduces reaction steps and unit operations, an expected outcome when employing process intensification, but our results show additional energy conservation and reduced contribution to climate change. Among the ReCiPe life cycle environmental impact metrics evaluated, air emission related impacts are high for bio-polyisoprene compared to those for natural and synthetic rubber. Those impacts can be reduced with air emission controls during production. All other metrics showed an improvement for bio-polyisoprene compared to natural and synthetic rubber.

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“…The axis contains the core, latex and the arils (Figure 1). Jackfruit has lactiferous cells which are responsible for production of latex [23], which is sap that sticky in nature. The perianth contains the rind and the rags, the bulbs contain the edible part and the seeds.…”

Section: Major Parts Of a Jackfruitsmentioning

confidence: 99%

A Review on Importance of Artocarpus heterophyllus L. (Jackfruit)

Khan

Ema

Faruk

et al. 2021

J. Multidiscip. Appl. Nat. Sci.

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The Jackfruit (Artocarpus heterophyllus L.) is well-known as “poor man’s food” fruit in Bangladesh. It is widely consumed by most of the rural people and it is the national fruit of Bangladesh. The main aim of this review is to document the medicinal significance of jackfruit (Artocarpus heterophyllus L.), major parts and uses of the jackfruit in Bangladesh. This article was based on mostly a literature review. All parts of the fruit and plant are used as human food, animal feed and wood source for furniture. Although jackfruit is the main fruit of the tree, it is used as furniture for its beautiful texture and wood color. Jackfruit contains anti-bacterial, anti-diabetic, anti-oxidant, anti-inflammatory and anti-helminthic properties. The fruit is rich in carbohydrates, minerals, carboxylic acids, dietary fiber, vitamins and minerals. The seed is rich in manganese, magnesium, potassium, calcium iron and lectins and thus meets up nutritional requirements for the rural people. The present study attempted to review the medicinal importance, health-promoting effects of jackfruit and seeds with special emphasis on their applications in the food.

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Possibility of artocarpus heterophyllus latex as an alternative source for natural rubber

Cited by 16 publications

References 16 publications

COVID-19 pandemic and emerging plastic-based personal protective equipment waste pollution and management in Africa

COVID-19 pandemic and emerging plastic-based personal protective equipment waste pollution and management in Africa

Bio-Based Polyisoprene Can Mitigate Climate Change and Deforestation in Expanding Rubber Production

A Review on Importance of Artocarpus heterophyllus L. (Jackfruit)

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