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Industrial Crops and Products
Elsevier Science Publishers
Industrial Crops and Products

Elsevier Science Publishers

0926-6690

Industrial Crops and Products/Journal Industrial Crops and ProductsSCIISTPEI
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    Preparation of biopolyols by pyrrolidone ionic liquid-catalyzed ring-opening of epoxidized soybean oils

    Li, JunKuang, YongyanBi, YanlanSun, Shangde...
    9页
    查看更多>>摘要：The effects of N-methyl pyrrolidone hydrogen sulfate ([Hnmp]HSO4), alpha-pyrrolidone hydrogen sulfate ([Hnhp] HSO4), and dinucleated pyrrolidone hydrogen sulfate ([[Hnhp]HSO4]2) on ring-opening of epoxidized soybean oils (ESO) was comparatively investigated. Results showed that [Hnhp]HSO4 had stronger catalytic activity than the other two. Under the optimal conditions ([Hnhp]HSO4 loading of 6%, water-epoxy group ratio of 9:1 (mol/ mol), reaction temperature of 45 degrees C, and reaction time of 4 h), the resulting di-hydroxylated soybean oils (DSO) with an epoxy content of 0.87% and hydroxyl value (OHV) of 213.41 mg KOH/g was achieved, which corresponded to a conversion rate of OHV of 57.98%. In-situ Fourier transform infrared spectroscopy (In-situ FTIR) and FTIR analyses indicated that the rapid ring-opening of ESO and formation of DSO mainly occurred at 2-3.5 h. The increase of polarity and molecular weight after ring-opening and the formation of hydrogen bonds resulted in the higher viscosity of DSO than ESO. ESO and DSO were thermally stable at up to 350 degrees C. The effectiveness of [Hnhp]HSO4 in catalyzing the ring-opening of ESO was comparable to that of inorganic acids. Almost complete ring-opening of epoxy groups with much less etherification leads biopolyols to have more available hydroxyl groups. Thus, the resulting biopolyols can be processed as chemical intermediates under more flexible parameter conditions.
      原文链接:
    • NSTL
    • Elsevier

    The potential of transforming rice straw (Oryza sativa) and golden shower (Cassia fistula) seed waste into high-efficiency biochar by atmospheric pressure microwave plasma

    Dermawan, DennyFebrianti, Aulia NurSetyawati, Emeralda Eka PutriPham, Minh-Thuan...
    15页
    查看更多>>摘要：Biochars were successfully produced from rice straw and golden shower seed wastes and used to obtain agricultural waste-derived and low-cost adsorbents to remove methylene blue (MB) dye pollutants. The biochars were prepared using atmospheric pressure microwave plasma in a nitrogen environment at three individual flow rates of 7, 9, and 11 L/min for 5 min via pyrolysis. After pyrolysis, RS biochar's surface area and pore volume increased from 1.224 m(2)/g to 13.796 m(2)/g, 11.995 m(2)/g, 6.865 m(2)/g, and 0.006 cm(3)/g to 0.804 cm(3)/g, 0.168 cm(3)/g, 0.08 cm(3)/g, respectively, then GS increased from 11.874 m(2)/g to 40.423 m(2)/g, 45.731 m(2)/g, 73.067 m(2)/g, and 0.006 cm(3)/g to 0.181 cm(3)/g, 0.277 cm(3)/g, 4.227 cm(3)/g, respectively. FTIR results showed O-H stretching in hydroxyl groups, CO functional group, C-H bending of CH3, and C-H vibration aromatic compounds, essential for MB adsorption. The golden shower seed biochar activated by plasma gas flowrate 11 l/m (GS-11) and rice straw biochar activated by plasma gas flowrate 7 l/m (RS-7) had the highest adsorption capacity among all biochars, 344.82 mg/g, and 188.32 mg/g, respectively, which was 10.6 and 2.07 times higher than other golden shower and rice straw biochar from the previous research by much shorter pyrolysis duration of 24 and 48 times, respectively. In addition, both biochars had higher adsorption capacity than previous biochars from different biomass and pyrolysis methods even though they applied 5 times lower in dosage, 3 times higher on initial MB concentration, and 36-144 times shorter pyrolysis time. The equilibrium data fit well with the Langmuir model, and the adsorption kinetics followed pseudo-second-order kinetics. According to the current study, the atmospheric pressure microwave plasma can generate high-quality biochars quickly and be promoted as a recycling technology method. Then, the product biochars can reach high adsorption capacity with a low dosage, high initial MB concentration, low energy consumption, and no chemical added. Furthermore, the product can enhance the value of rice straw and golden shower seed waste, support a circular economy approach, reduce the waste released to the environment, and reduce air pollution generated.
      原文链接:
    • NSTL
    • Elsevier

    Cascaded use of perennial industrial crop biomass: The effect of biomass type and pre-treatment method on pellet properties

    Stolarski, Mariusz J.Warminski, KazimierzKrzyzaniak, MichalOlba-Ziety, Ewelina...
    12页
    查看更多>>摘要：Lignocellulosic biomass should not be used as energy feedstock only. The extractable phytochemicals present in lignocellulosic biomass from perennial industrial crops (PIC) can be used in the pharmaceutical, cosmetic and chemical industries. A production residue, so-called "post-extraction biomass ", can be later used as energy feedstock. Therefore, the aim of this study was to assess the thermophysical and chemical properties of pellets produced from various types of post-extraction (after extraction with supercritical CO2 (SFE)) and non-extracted biomass (NE) obtained from five PIC species (willow, poplar, willowleaf sunflower and giant miscanthus). The highest lower heating value (17.40 MJ kg(-1)) was determined for willow Salix viminalis SFE pellets. The ash content was higher in pellets produced from green biomass willowleaf sunflower and giant miscanthus (mean 9.92% and 6.85% DM, respectively). Pellets from wood and a bark and wood mixture were included in one separate cluster. Another cluster was formed only for pellets from bark, with a separate cluster for pellets from green biomass. It was found with respect to the biomass pre-treatment that SFE pellet characteristic features included higher length, bulk density, mechanical durability, fixed carbon, cellulose, lignin, Cl contents (by 83%, 11%, 2%, 3.5%, 3.0%, 7.9%, 29.0% respectively) and lower moisture content, ash and volatile matter contents, higher heating value, lower heating value, C, H, N, S, soluble substance, hemicellulose contents compared with NE pellets.
      原文链接:
    • NSTL
    • Elsevier

    Effects of glutathione on waterlogging-induced damage in sesame crop

    Keya, Sanjida SultanaMostofa, Mohammad GolamRahman, Md MezanurDas, Ashim Kumar...
    12页
    查看更多>>摘要：Sesame (Sesamum indicum) is an important oil crop, occupying the seventh position in the edible oil industry; however, it is relatively sensitive to waterlogging (WL) stress. Reduced glutathione (GSH) is known to have mitigating effects against various abiotic stresses in plants; however, its exploration to improve WL tolerance in sesame is still elusive. In this study, we investigated the multiple effects of exogenously applied GSH in sesame plants subjected to WL for 3 days. Our results showed improvement in growth and biomass production of GSH-sprayed waterlogged sesame when compared with WL-stressed counterpart alone. The improved performance of GSH-sprayed WL-stressed plants was supported by the increased leaf area, the levels of photosynthetic pigments and gas exchange attributes, and chlorophyll fluorescence parameters. Exogenous GSH treatment significantly increased the levels of total soluble sugars and total free amino acids in the leaves of sesame plants for the improvement of water balance under WL conditions. Accumulations of superoxide and hydrogen peroxide, enhancement of malondialdehyde level, and electrolyte leakage in sesame leaves indicated evident oxidative damage induced by WL. On the other hand, exogenous GSH application diminished oxidative stress by enhancing the activities of catalase, ascorbate peroxidase, peroxidase, glutathione peroxidase, and glutathione S-transferase, as well as total flavonoid and GSH levels in the leaf tissues. Furthermore, GSH supplementation to WL plants increased the transcript levels of numerous antioxidant defense-related genes, such as SiCAT1, SiCATX1, SiAPX3, SiPOD40, SiPOD44, SiGPX4, SiPHGPX1, SiGSTU23, and SiGSTU25 in shoots, corresponding to enhanced activities of respective antioxidant enzymes. Our results highlight the potential roles of GSH in modulating adaptive mechanisms of sesame plants for reduction of WL-induced damage, and this GSH-mediated effective strategy could be implemented at the field level to sustain sesame production under WL conditions.
      原文链接:
    • NSTL
    • Elsevier

    Micronutrient-controlled-release protein-based systems for horticulture: Micro vs. nanoparticles

    Jimenez-Rosado, MercedesPerez-Puyana, VictorGuerrero, AntonioRomero, Alberto...
    9页
    查看更多>>摘要：Fertilization is an increasingly common practice in horticulture. Nevertheless, the conventionally used fertilization method is ineffective, and it generates contamination problems due to excess nutrients. Therefore, new technologies, such as nanofertilization or controlled-release systems of fertilizers, are currently being tested. Thus, the main objective of this work was to develop controlled-release systems for micronutrients, using soy protein as raw material. Different micronutrients (zinc, copper, iron, and manganese) were evaluated, as well as their incorporation in the form of micro and nanoparticles. The mechanical and functional properties (water uptake capacity, biodegradability, and micronutrient release) of the systems, as well as their use in crops, were studied to assess their viability. The results showed the great potential of these systems to incorporate micronutrients into crops, especially when combined with nanotechnology, improving the benefits of conventional fertilization.
      原文链接:
    • NSTL
    • Elsevier

    Optimization of chiisanoside and chiisanogenin isolation from Eleutherococcus sessiliflorus (Rupr. & Maxim.) leaves for industrial application: A pilot study

    Jang, Hyun-JaeKim, Won JunLee, Su UiKim, Mun-Ock...
    9页
    查看更多>>摘要：Chiisanoside and chiisanogenin, which have been reported to have various bioactivities, were the most representative components of the leaves of Eleutherococcus sessiliflorus. The purpose of this study was to establish an optimal harvest period to increase bioactive chemical components and to utilize them as industrial crop materials under the quality control process of E. sessiliflorus. The extraction conditions of leaves were optimized to maximize the main two components using response surface methodology with a Box-Behnken design. The chemical structures of compounds 1-18 isolated from leaves under optimal extraction conditions were identified via NMR and HRMS. Using the chemical profile of leaves by the established UPLC-QTOF-MS and PDA methods, the yields of chiisanoside and chiisanogenin were inversely proportional, and the optimal harvest time from April to September was determined as July for those two components. This study could be used to develop high-quality products, including functional medicinal crops and health supplements, using E. sessiliflorus leaves.
      原文链接:
    • NSTL
    • Elsevier

    Screening flax, kenaf and hemp varieties for phytoremediation of trace element-contaminated soils

    Guo, YuanPapazoglou, Eleni G.Zhao, Xinlin
    12页
    查看更多>>摘要：Phytomanagement is a phytoremediation sub-technology in which industrial cash crops are cultivated on contaminated lands to produce useful biomass feedstock for bioproducts and bioenergy. Flax (Linum usitatissimum L.), kenaf (Hibiscus cannabinus L.), and hemp (Cannabis sativa L.) are suitable crops for this purpose since they have been reported to show a tolerance to toxic trace elements in soils, are fast-growing, yield a high biomass, have low input requirements, use well-known agricultural practices, and are multipurpose. The objectives of this research was to explore the potential of these crops for cultivation at sites highly contaminated with Cd, Ni, Pb, Zn, Cu, and Sb, to assess their ability to accumulate these elements and to reveal their capacity for use as phytoaccumulators or phytostabilizers. Three varieties per crop were tested, i.e. for flax: Y2I328, Y2I329 and Zhongyama No. 1; for kenaf: Hongyou No. 2, GGS, HP; and for hemp: Guangxibama, Yunma No. 1 and Zhongdama No. 1. A pot experiment was conducted outdoors and two soil concentrations of each element were tested against a control, namely: Cd at 0, 40, 80 mg/kg; Ni at 0, 110, 220 mg/kg; Pb at 0, 1500, 3000 mg/kg; Zn at 0, 1500, 3000 mg/kg; Cu at 0, 1000, 2000 mg/kg; and Sb at 0, 50, 100 mg/kg. The effects of these elements on seed germination and growth parameters were measured. In addition, their concentrations in and uptake by the plants were determined. The results showed that the concentrations of Cu and Zn applied were lethal for all three crops and varieties. All crops were excluders of Sb. The kenaf varieties were more tolerant than the varieties of the other two crops, and at the same time, they had the best uptake potential for Cd and Ni. Under Pb treatment, two flax varieties concentrated this element in tissue at levels higher than 1000 mg/kg, an interesting result that has to be verified under field conditions.
      原文链接:
    • NSTL
    • Elsevier

    Preparation and evaluation of photoprotective kenaf seed oil nanocarriers-based cream of tocotrienol-rich fraction

    Tan, Chin PingHasan, Zafarizal Aldrin AzizulNyam, Kar LinChu, Chee Chin...
    9页
    查看更多>>摘要：Applications of nanotechnology and vegetable oil in topical formulation have emerged to provide benefits to develop effective and safe advanced biocosmetic prototypes. The study aimed to optimize the ratio of UV filters in kenaf (Hibiscus cannabinus L.) seed oil nanocarrier to form a sunscreen formulation. The nanocarriers were characterized based on particle size, polydispersity index, encapsulation efficiency, UV absorption, Raman mi-croscopy, and high-resolution transmission electron microscopy analysis. The selected nanocarrier was added to a tocotrienol-rich fraction (TRF) cream and subjected to photoprotection and functional analysis to determine its skin beneficial properties based on cellular antioxidant capacity and relative protein expression on fibroblasts. The results revealed that nanocarriers with particle sizes ranging from 180 nm to 240 nm showed > 90% of encapsulation efficiency for UV filters. Sample F5 contained 1.25% of diethylamino hydroxybenzoyl hexyl benzoate (DHHB) and 0.75% of ethylhexyl triazone (EHT), having a spherical shape at particle size 204.80 nm with > 95% of UV filter encapsulation and high intensity in both UVA and UVB spectra. The cream produced from F5 and TRF (NLC-TRF cream) indicated no cytotoxicity and was able to provide sun protection factor (SPF) value of 53 and cellular antioxidant capacity of 45.13%. Besides, a significant protein upregulation (1.29-fold for fibroblast growth factor, 7.77-fold for vascular endothelial growth factor, 11.21-fold for transforming growth factor-beta 1, and 1.69-fold for tissue inhibitor matrix metalloproteinase-1) and downregulation for matrix metalloproteinase-1 and -2 resulted after 24 hr of treatment. The application of nanocarriers in TRF cream can enhance the photoprotection, skin-protective properties in cellular antioxidant capacity, and protein expression which could be a promising delivery system in sunscreen formulations.
      原文链接:
    • NSTL
    • Elsevier

    Aqueous-phase hydrogenation of alpha-pinene catalyzed by Ni-B alloys loaded on a Janus amphiphilic carbon@silica nanomaterial

    Yu, Feng-LiShi, Yi-LuWu, Fang-ZhuYuan, Bing...
    12页
    查看更多>>摘要：A Janus amphiphilic carbon@silicon double-framework nanomaterial having an inner cavity, a hydrophobic N-doped carbon inner layer, and a hydrophilic silica outerlayer was prepared. Ni-B alloy nanoparticles were loaded on the amphiphilic carbon@silicon nanomaterial and used for catalyzing alpha-pinene hydrogenation in aqueous media. The hollow structure of the nanomaterial yielded a large specific surface area, which was beneficial for mass transfer and substrate enrichment, the doping of N atoms in the inner carbon skeleton allowed the attachment of additional metal nanoparticles, and the hydrophilic silica outer shell improved the stability and dispersion of the catalyst in the aqueous system. Crucially, in a water/oil two-phase reaction system, the amphiphilic nanocatalyst acted as a solid foaming agent, thus promoting the dissolution of H-2 and substrate contact. Further, the synergy between Ni and B significantly improved the catalytic activity, and a kinetic study revealed the low activation energy for alpha-pinene hydrogenation over the prepared catalyst. DFT calculations indicate the transition states with low energy barriers. Further, the catalytic activity of our non-noble-metal nanocatalyst was comparable to that of noble metal Ru and Pd catalysts. Under mild conditions (80 degrees C, 1.0 MPa H-2, 3 h), 99.0% alpha-pinene was converted to cis-pinane with 98.5% selectivity, and the developed amphiphilic Ni-B nanocatalyst also showed excellent recyclability as a result of the high dispersion and stability of the Ni-B nanoparticles on the carbon@silicon nanomaterial. The study provides a new green and efficient way for the deep processing and utilization of turpentine resources, and provides a guidance for the expansion of water-phase non-noble metal catalytic reaction types.
      原文链接:
    • NSTL
    • Elsevier

    Insight into evolution of chemical structure and mineralogy to reveal the mechanism of temperature-dependent phosphorus release from hydrochars

    Hu, ZiwanJian, XiumeiWu, RongtaiLi, Yanhan...
    13页
    查看更多>>摘要：Shrimp shell (SS) is sustainable biomass with abundant minerals and developable phosphorus (P) resource. Hydrothermal carbonization of SS can solve the shortage of P resources and the utilization of waste. However, few studies on the application of SS hydrochar as fertilizer have been conducted. Having an insight into the evolution of chemical structure and mineralogy could understand the mechanism of P release. In this study, Olsen method was employed to determine the available P (AP) release, and the temperature-dependent evolution of crystalline phase, carbon skeleton structures and surface functionalities were characterized by XRD, XPS, FTIR and TG. The results of AP release from SS hydrochar showed the following temperature (120-280 degrees C in 20 degrees C intervals) dependence: 120 degrees C derived hydrochars (2.30 mg/g) > feedstock (1.51 mg/g) > 160-280 degrees C derived hydrochars. In addition, AP dissolution kinetic data were well fitted to pseudo-second-order equation (R-2 > 0.999). Two-dimensional correlation spectroscopy revealed that phosphate crystallinity degree was negatively corresponding to release behavior. Meanwhile, calcite crystal growth and the transformation of P species influence the P bioavailability of SS hydrochar. Therefore, hydrochar with lower phosphate crystalline could benefit the P fertilizing efficiency.
      原文链接:
    • NSTL
    • Elsevier