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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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    Magnetized water: A way to enhance isoflavonoids in cultured Pueraria candollei var. mirifica cells

    Rani D.De-Eknamkul W.Vimolmangkang S.Kobtrakul K....
    13页
    查看更多>>摘要:? 2022 Elsevier B.V.Magnetic fields can alter plant growth and development. In this study, the effect of magnetized water on the growth and secondary metabolite production of Pueraria candollei var. mirifica (PM) suspension cells was evaluated. Magnetized water was generated by passing water through a magnetic field (400 mT) at a 6 L/min flow rate. The suspension cells exposed to magnetized water for 10 (M2, 1.37 g) and 5 min (M1, 1.23 g) showed 21% and 9% higher biomass accumulation, respectively, compared with the control cells after 5 days. Compared with that in the control cells, the biomass was increased by approximately 43% when the cells were exposed to M2 (3.01 g) after 28 days. In addition, the use of magnetized water altered the accumulation pattern of isoflavonoids after 5 days of treatment. Isoflavonoid accumulation was the highest after treatment with M2 for 5 days and yielded 4.20 mg/g dry weight (DW) daidzein, 0.58 mg/g DW genistein, and 3.98 mg/g DW kwakhurin. When the cells were maintained in the treatment for a relatively long duration (28 days), a short span of magnetization (M1) resulted in the highest accumulation of isoflavonoids with the amounts of 3.51, 0.55, and 2.58 mg/g DW for daidzein, genistein, and kwakhurin, respectively. After 28 days of exposure to magnetized water, the expression of 2-hydroxyisoflavanone synthase and 2-hydroxyisoflavanone dehydratase increased, and this phenomenon coincided with the increased amount of isoflavonoids in the suspension cells. The magnetized water-treated PM cells also exhibited higher antioxidant activities than the control cells. The lowest half-maximal inhibitory concentration (37.93 mg/mL) was observed in the cells treated with magnetized water after 15 min (M3). The enhanced total antioxidant activity of the cells treated with M3 may be attributed to the presence of other compounds in addition to isoflavonoids. This study represents an innovative attempt at a low-cost and environmentally friendly approach that can enhance the growth, secondary metabolite production, and antioxidant activity of PM suspension cells.

    Volatiles mediated an eco?friendly aphid control strategy of Chrysanthemum genus

    Zhong J.Guo Y.Shi H.Liang Y....
    9页
    查看更多>>摘要:? 2022 Elsevier B.V.The chrysanthemum aphid Macrosiphoniella sanborni is one of the most severe crop pests for the cultivated chrysanthemum. It is urgent to find efficient and eco?friendly control strategies to promote the chrysanthemum industry's sustainable development. In this study, an aromatic wild species Chrysanthemum aromaticum were introduced to hybrid with Chrysanthemum nankingense to breed aphid-resistant offspring, and the role of the constitutive volatiles was revealed. Fifty interspecific hybrids were obtained and identified by morphology and SSR test. The aphid resistance of 28 robust hybrids was evaluated by combining the greenhouse test with the field test. Then, chrysanthemum aphids were exposed to the volatiles of two parents and ten hybrids to ensure volatiles influenced their choice. Sixty-five major compounds were detected in the parent and hybrid leaves using solid phase micro extraction-gas chromatography-mass spectrometry (SPME-GC–MS). Nineteen featured compounds of aphid resistant lines were selected by PCA analysis. Cis-4-thujanol was confirmed to be an effective repellent by the Y tube choice experiment and direct exposure tests. These findings have important implications for more eco-friendly control options of chrysanthemum aphids. C. aromaticum and these aphid-resistant hybrids can be used as breeding materials directly. Cis-4-thujanol has excellent potential to formulate natural insecticides.

    Use of sugar beet cellulose nanofibers for paper coating

    Fadel S.M.Abou-Elseoud W.S.Hassan E.A.Hassan M.L....
    8页
    查看更多>>摘要:? 2022 Elsevier B.V.Sugar beet pulp (SBP) is a widely available byproduct from sugar industry in several countries. In the current work, cellulose nanofibers (CNFs) were isolated from SBP depectinated using two different methods, namely sulfuric acid hydrolysis and hydrothermal extraction, to obtain nanofibers with different residual pectic substance. The isolated CNFs had width of ~ 5 nm and several microns in length using both methods of pectin extraction. Chemical composition was studied regarding α-cellulose, pentosans, residual pectic substance, and degree of polymerization (DP). Films cast from CNFs were characterized regarding their crystallinity, mechanical properties (tensile strength, Young's modulus, and strain), water contact angle measurement, as well as by Fourier transform infrared (FTIR). The results showed higher tensile strength properties and higher hydrophilicity for films made from CNFs isolated from the hydrothermal-depectinated SBP (HDCNF) than those from the acid-depectinated SBP (ADCNF). Both of HDCNF and ADCNF were used as coating for bagasse paper sheets; the coated paper sheets were characterized regarding their tensile strength, burst strength, water vapor permeability, air porosity, and grease-proof properties. Coating of paper sheets with CNFs resulted in remarkable increase in their mechanical properties and decrease in air porosity; higher effect was recorded in case of using the HDCNF coating. Paper sheets coated with HDCNF or ADCNF showed good grease-proof property. Finally, measuring the overall migration of the CNFs-coated paper sheets showed safety of the applied coatings for food packaging applications.

    Identification of MYB genes reveals their potential functions in cadmium stress response and the regulation of cannabinoid biosynthesis in hemp

    Yin M.Pan G.Tao J.Zhao L....
    14页
    查看更多>>摘要:? 2022Cadmium (Cd) is an inorganic heavy mutant pollutant in China. Industrial hemp (Cannabis sativa L.) is an important fiber crop used to remediate soils contaminated with heavy metals. Studies have shown that exogenous Cd stress can affect the production of secondary metabolites in industrial hemp plants. In the industrial hemp genome, we identified a total of 113 MYB genes, which are members of one of the largest and most important gene families that influences plant growth and secondary metabolite production. This study characterized 17 genes within the 1R-MYB subfamily, 88 genes in the 2R-MYB subfamily, and eight genes in the 3R-MYB subfamily. Synteny analysis indicated that there were three pairs of tandemly repeated CsMYBs, 21 pairs of segmental duplication, six CsMYBs were present before species differentiation, and 60 may be cannabis-specific CsMYBs. These results suggested that segmental duplication was the main factor during the evolutionary process that resulted in the expansion of the MYB family in hemp. Importantly, seven of these are key genes in response to Cd stress. Based on changes in gene expression and cannabinoid content under Cd stress, it was shown that CsMYB024 was affected by Cd stress and induced the cannabidiol biosynthesis pathway. Taken together, this study provides a comprehensive analysis of the cannabis MYB family and lays the foundation for the further study of biological functions of CsMYBs.

    Chemical composition of five Tunisian Pinus Species’ essential oils and effect of their blends on Otitis infection

    Ameur E.Sarra M.E.Takoua K.Mariem K....
    8页
    查看更多>>摘要:? 2022 Elsevier B.V.Many studies reported the chemical composition and the biological activities of Pinus Essential oils (EOs). A few of them were investigated for their antibacterial activity against strains responsible for otitis. The present paper investigated the variation of the chemical composition and the antibacterial activity of the EOs of five Tunisian Pinus species and of their combinations against six bacterial strains responsible for otitis. The EOs’ yields varied from 0.3 ± 0.1% for P. pinea to 1.8 ± 0.4% for P. halepensis. Their chromatographic analyses by GC and GC-MS identified 139 components varying according to the species. The main components were β-pinene followed by trans-caryophyllene, germacrene D, α-pinene, β-myrcene, palustradiene, abieta-7,13-triene, levopimaradiene, thunbergol, and caryophyllene oxide. Four chemical groups were identified basing on the PCA and the HCA of the 25major's components of the studied EOs. However, three subgroups were identified within the antibacterial-based PCA and HCA analyses. The highest antibacterial activity was observed with the blends of oils extracted from P. halepensis and P. canariensis and mixture of oils extracted from P. brutia and P. canariensis. These EOs blends may constitute promising antibiotic alternatives for the treatment of the otitis media.

    Banana inflorescence waste fiber: An effective filler for starch-based bioplastics

    Pongsuwan C.Boonsuk P.Kaewtatip K.Sermwittayawong D....
    10页
    查看更多>>摘要:? 2022 Elsevier B.V.Banana inflorescence is a source for the extraction of medically active compounds such as polyphenol, polysterol, and fatty acids. All the extraction techniques produce waste banana inflorescence that is rich in insoluble fibers such as lignocellulose. However, the waste is usually without value and its use in a non-medical area has not been demonstrated. Therefore, this study explored the possibility of developing a starch-based bioplastic product using fiber from banana inflorescence waste as a filler. Scanning electron microscopy revealed good adhesion between the filler and the starch matrix. Fourier transform infrared spectroscopy confirmed hydrogen bonding between the filler particles and starch chains. These results indicated the phase compatibility of the starch-based bioplastic and the banana inflorescence waste fiber. Banana inflorescence waste fiber is an effective filler that improved the water resistance and mechanical and thermal performances of the starch-based bioplastic.

    A taxonomic review and analysis on biomass supply chain design and planning: New trends, methodologies and applications

    Mottaghi M.Bairamzadeh S.Pishvaee M.S.
    9页
    查看更多>>摘要:? 2022 Elsevier B.V.Due to various environmental problems and social impacts caused by biomass supply chains activities such as climate change, increasing energy demand, energy security, and food crisis, on the one hand, and economic issues such as high costs of biomass supply chains logistics activities, and inefficient production of bioenergy products from low-energy density biomass, on the other hand, modeling and optimization of sustainable biomass supply chains have transitioned to a growing area of research in a recent decade. In this perspective, evaluating three aspects of sustainablity, including economic, environmental, and social sustainability, as the main characteristic to review the literature of supply chain design and planning models has been the subject of several review studies, however, modeling and optimization of sustainable biomass supply chains have not been reviewed and analysed so far. To bridge this gap, this paper provides a taxonomic review of biomass to bio-products supply chains design and planning models that evaluate or optimize economic, environmental, and social aspects of sustainability. To this aim, a total number of 178 papers published in scientific journals are categorized and analyzed according to a comprehensive classification framework, including sustainability dimensions, decision level, modeling approach, model characteristic, solution approach, uncertainty modeling approach, and data. Some significant factors ignored in the previous studies such as sustainability aspects, transportation modes, by-products, type of biomass feedstocks, international and governmental factors are considered in this review in order to provide a comprehensive vision for the readers. Finally, the drawbacks and research gaps that have been identified through the literature review are highlighted, and potential directions for future studies are recommended.

    Predicting bleachability of Eucalyptus mechanical pulp by moisture content-dependent near-infrared spectroscopy

    Liang L.Wu T.Fang G.Jiao J....
    9页
    查看更多>>摘要:? 2022 Elsevier B.V.As the main raw materials in the pulp and paper industry, Eucalyptus wood has different bleachability due to the variety of species. In this study, moisture content-dependent near-infrared (NIR) spectroscopy was developed to predict the bleachability of two different Eucalyptus mechanical pulp from Eucalyptus globulus (EG) and Eucalyptus urophylla (EU). Two-dimensional (2D) correlation analysis was applied to explain the distinctive spectral change of EG and EU mechanical pulps under moisture content perturbation, the susceptible extent and sequential order of spectral changes were displayed in the synchronous and asynchronous maps, respectively. In the synchronous map of EU pulp, the spectral intensity at 1685 nm related to lignin changed significantly with moisture content, and the spectral change at 1432 nm related to cellulose was stronger than that at 1373 nm related to holocellulose, while the opposite behaviors were observed in the synchronous map of EG pulp. Meanwhile, the two Eucalyptus species had different sequential orders of spectral change occurring at the lignin-related band (1164 nm) and carbohydrate-related bands (1432 nm and 1590 nm) in the asynchronous maps. Then the correlation between moisture content-dependent spectral features and bleachability of pulps was confirmed by principal component analysis (PCA). Finally, a radial basis function neural network (RBFNN) predictive model was built using moisture content-dependent spectral features to describe the brightness response of Eucalyptus mechanical pulp under different bleaching conditions and exhibited excellent prediction accuracy and generalization performance. Therefore, moisture content-dependent NIR spectroscopy may be a promising technique for predicting the bleachability of raw material in pulping and papermaking processes.

    Water-assisted extrusion of carbon fiber-reinforced wheat gluten for balanced mechanical properties

    Wei X.-F.Ye X.Hedenqvist M.S.
    15页
    查看更多>>摘要:? 2022 The AuthorsPlasticizers turn brittle bio-based and biodegradable highly hydrophilic polymers into tough materials. Unfortunately, it also means that the material becomes softer and weaker. The concept of combining a plasticizer and reinforcing fibers was investigated here on a protein material (wheat gluten) plasticized with glycerol and reinforced with chopped carbon fibers. The carbon fibers showed good interfacial bonding with the gluten matrix and improved both tensile strength and Young's modulus of the material. The resulting composites also showed reduced elongation at break but still underwent ductile fracture under tension. Water-assisted extrusion, where water was used as a processing aid, was used to manufacture the composites and boost the reinforcement. Water addition significantly reduced the viscosity of the gluten dough and thus decreased fiber breakage during extrusion/compounding. The composites prepared with water-assisted extrusion had much longer fibers and consequently higher stiffness than those prepared without water. Apart from the balanced mechanical properties, the resulting composites showed reduced uptake of moisture (reduced moisture sensitivity) due to the water-impermeable carbon fibers. Hence, a new extrusion method was presented for fiber-reinforced inherently viscous plant-based polymer composites, which enabled good mixing without critical fiber damage and thus improved fiber reinforcement.

    Adventitious root culture of Plantago ovata Forssk. as a source of phenylethanoid glycosides

    Budzianowska A.Kikowska M.Budzianowski J.
    11页
    查看更多>>摘要:? 2022 Elsevier B.V.The investigations were targeted to obtain in vitro culture of Plantago ovata, which would be efficient in the production of plant biomass and phenolic compounds with multiple biological activities, like acteoside and plantamajoside - the main phenylethanoid glycosides present in the Plantago genus. In these experimental studies, roots were obtained by natural development from seedlings germinated in vitro and from in vitro multiplied shoots as well as by direct organogenesis on seedling leaf explants and indirect organogenesis from callus cultured on various explants. Callus-regenerated roots agitated in MS (Murashige and Skoog) liquid medium supplemented with phytohormones NAA (1-naphthaleneacetic acid) 0.25 mg/L and BAP (benzylaminopurine) 0.5 mg/L turned out to be a good growth system for root biomass production - mean increase of root fresh weight calculated on three following passages was 6641.07%. The quantitative screening of the root extract by HPTLC video densitometric method showed the content of acteoside 33.02 mg/g dry weight (d.w.) (538.9 mg/L of culture) and plantamajoside 6.39 mg/g d.w. (104.0 mg/L of culture) in root biomass obtained with the yield 16.32 g d.w. /L within 4 weeks. The content of those compounds in the in vitro shoots was significantly lower – 4.20 and 4.28 mg/g, d.w., respectively. Although the high level of acteoside in the root culture decreased in the following 8 weeks of the culture, it is still satisfactorily high (8.25 mg/g, d.w.). This is the first report on the adventitious root cultures of Plantago ovata and the content of those phenylethanoids in that well-grown plant material. The proposed approach provides an alternative to the soil-grown plants, source of plant metabolites, due to the possibility of the fast, regular and scalable production of plant biomass containing the compounds of interest as the main constituents.