Evaluation of different agricultural residues as raw materials for pulp and paper production using a semichemical process

Manufacturing fit-for-purpose paper packaging containers with controlled biodegradation rate by optimizing addition of natural fillers

“…Table 7 presents the progression of the breaking length before testing, and after 2, 4, and 8 weeks of soil exposure for all investigated papers. The results obtained from samples before exposure confirm the positive impact of fillers on the mechanical resistance of paper products and corresponds to trends reported by other researchers (Nechita et al 2010;Gonzalo et al 2017). None of the samples were suitable for mechanical testing after 8 weeks of exposure due to excessive degradation.…”

Sudanese Dicots as Alternative Fiber Sources for Pulp and Papermaking

“…The results reveal that castor bean shows higher total pulp yield of 43.20 % with an acceptable kappa number of 18.20 compared to that of 40.30 % with kappa number of 20.30 of L. pyrotechnica. The low pulp yield of L. pyrotechnica is attributed to a relatively high content of extractives, especially in hot and cold water compared to that of castor bean (Ferhi et al, 2014a) as well as low cellulose content (Gonzalo et al, 2017). These values are higher than those of A. armatus (Ferhi et al, 2014a) and I. tinctoria (Comlekcioglu et al, 2016) and lower than those of vine stems (Mansouri et al, 2012) and A. armatus (Ferhi et al, 2014a).…”

“…Many studies have been carried out to fi nd new alternative lignocellulosic materials. Some of these studies have used tobacco (Shakhes et al, 2011a), rice straw, sugarcane bagasse and cotton stalk (Adel et al, 2016), pineapple (Wutisatwongkul et al, 2016) millet stalks and date palm leaves (Saeed et al, 2017b), J. procera (Nasser et al, 2015), sunfl ower stalk (Barbash et al, 2016) gracilaria and eucheuma (Machmud et al, 2013), bitter orange (Tutuş et al, 2016), ipomea carnea and cannabis sativa (Dutt et al, 2008), c. orientalis and c. tataria (Tutus et al, 2010), wheat straws (Espinosa et al, 2016) and broad bean, bell pepper and asparagus (Gonzalo et al, 2017). However, there is no previous study on the application of castor bean (Ricinus communis) and Leptadenia pyrotechnica (L. pyrotechnica) stems for pulp and paper production.…”

Economic Analysis of the Barley Market and Related Uses

“…For example, the presently growing interest is focused on barley straw use as an alternative non-wood raw material in pulp and paper industry. Paper made from this agriculture residue presents great potential, in terms of paper sheet quality, compared with some wood species much commonly used such as P. sylvestris and E. camaldulensis [49,50]. Moreover, the high concentration of biocompounds in barley grain and distillery and brewery byproducts (such as phenolics, vitamin E and β-glucan, sterols, fatty acids, and bioactive peptides) makes barley a potential source of row material in pharmaceutical and cosmetic industries.…”