首页期刊导航|Industrial Crops and Products
期刊信息/Journal information
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
正式出版
收录年代

    Phytochemicals levels and biological activities in Hibiscus sabdariffa L. were enhanced using microbial fermentation

    Huang, Hui-ChiChang, Wen-TeWu, Yi-HsuanYang, Bo-Cheng...
    9页
    查看更多>>摘要：Hibiscus sabdariffa L. calyx, a common and important crop, has been extensively applied in the food, cosmetic or pharmaceutical industries worldwide. In this study, the extract of Hibiscus sabdariffa L. calyx (eHS) was used for microbial fermentation to amend its phytochemical constituents and improve the biological activity of eHS. After fermentation in eHS contained medium, antioxidant activity such as 1,1-Diphenyl-2-picrylhydrazyl radical (DPPH) and nitric oxide (NO) scavenging activity and total phenolic and flavonoid contents were significantly increased when the various fermentation starters were used especially on Galactomyces geotrichum inoculation. Additionally, 1% of eHS addition and static culture method were determined after optimization of fermentation conditions. High performance liquid chromatography (HPLC) and enzymatic activity analysis also demonstrated that the increased levels of phenolic compounds, flavonoids, anthocyanin and its aglycone derivatives mainly caused the improved biological activities of fermented eHS. This is the first report to apply eHS to microbial fermentation to improve the biological functionalities of fermented eHS.
      原文链接:
    • NSTL
    • Elsevier

    Interactive effects of increased plant density, cultivars and N rates in environments with different cotton yield recovery potential

    Galdi, Leonardo Vescodos Santos Cordeiro, Carlos FelipeSilva, Bruno de Senna E.Rodriguez de la Torre, Elio Jesus...
    9页
    查看更多>>摘要：Nitrogen (N) is one of the most absorbed and exported nutrients by cotton plants (Gossypium hirsutum L.), but excessive rates can result in excessive growth and reduce fiber yield and quality. Combinations of high N rates and high plant density reduced yields, especially in locations where yield is higher than 2000 kg ha(-1) of fiber. The effect on fiber quality (mainly micronaire and fiber strength) was lower in a location with the yield lower than 1600 kg ha(-1) of fiber and higher where the yield is higher than 2000 kg ha(-1) of fiber. Increasing the N rate is a strategy to boost yields with low soil fertility in low plant density crops and early maturation cultivars. The highest fiber yields were obtained with plant populations between 6.6 and 8.6 plants m(-2) (66,000-86,000 plants ha(-1)) and the best N dose depends on the plant population. Proper management of plant density and N fertilization must consider the specific cultivar, yield environment, and cotton yield potential.
      原文链接:
    • NSTL
    • Elsevier

    Application of lignin in preparation of slow-release fertilizer: Current status and future perspectives

    Zhang, YongjianShao, QianjunHassan, MuhammadLu, Jiajun...
    13页
    查看更多>>摘要：Lignin is the most abundant renewable aromatic resource on the Earth, which can be used for producing bioproducts to support human sustainable development. Due to the dual challenges of resources and environment, how to effectively utilize this kind of abundant, degradable, and renewable natural polymer has attracted great attention. In recent years, there are many studies on lignin-based slow-release fertilizer duo to its excellent slow release properties. As a carrier of nutrients, lignin-based physically impeded fertilizer can be realized by absorbing and wrapping nutrients, and lignin-based chemically modified fertilizer can be realized by chemical reaction between lignin and nutrients. In this paper, we reviewed the application of lignin in preparation of slowrelease fertilizer. The possible pathways and release mechanisms of physically impeded and chemically modified slow-release fertilizer were discussed. Although there was no uniform evaluation standard for slow-release fertilizer, its three common evaluation criteria were analyzed. With the expansion of the function of slow-release fertilizer, the evaluation system should be broadened and diversified. Finally, the challenges and future prospects of lignin-based slow-release fertilizer were discussed. The application of lignin-based slow-release fertilizer has great potential for promoting resource utilization and environmental protection.
      原文链接:
    • NSTL
    • Elsevier

    Plasticized hydroxypropyl cassava starch blended PBAT for improved clarity blown films: Morphology and properties

    Wadaugsorn, KiattichaiPanrong, TheeraphornWongphan, PhanwipaHarnkarnsujarit, Nathdanai...
    11页
    查看更多>>摘要：Plasticized hydroxypropyl cassava thermoplastic starch (TPS) with glycerol was blended with polybutylene adipate terephthalate (PBAT) via blown-film extrusion. Effects of PBAT/TPS ratios (60/40 and 50/50) and degrees of substitution (DS) for hydroxypropyl groups in TPS on film properties were investigated. All PBAT/TPS blend films were determined for morphology, thermal stability, thermomechanical, mechanical and barrier properties. Higher DS increased film clarity and glossy surface, improved compatibility between PBAT and TPS, reduced crystallinity and enhanced exposure of hydroxyl groups and hydrogen-bonding of the films. Blending caused phase separation with dispersed starch granules in continuous PBAT matrices, giving high surface roughness. Increased TPS and DS facilitated formation of co-continuous structures and miscibility, improving elongation by approximately 210%. Different DS modified microstructure and hydrophilicity of PBAT/TPS films which consequently reduced water vapor permeability by 34%. Modified DS in hydroxypropyl starch efficiently improved clarity, mechanical and barrier properties of bioplastic packaging.
      原文链接:
    • NSTL
    • Elsevier

    Sustainable tannin-based coagulants synthesized through Mannich reaction using melamine as an amine source for water treatment applications

    Bello, AdedayoLeiviska, Tiina
    15页
    查看更多>>摘要：This study explored the potential of melamine, as the nitrogenating source for the cationization of pulverized quebracho and spruce tannins. The influence of modification conditions on the properties of the coagulants was studied by varying the formaldehyde and melamine ratios with different activation times and temperatures. Based on considerations of charge density and shelf life, the most viable modifications were established as coagulants synthesized with a 1:0.52 formaldehyde to melamine molar ratio at 70 degrees C. At optimal conditions, the charge density of the quebracho and spruce coagulants was 2.22 meq/g and 1.04 meq/g, respectively, and the residual formaldehyde content in the coagulants was low. The developed synthesis of this study demonstrated a clear advantage over previous methods due to the rapid modification step. X-ray photoelectron spectroscopy (XPS) confirmed the emergence of an amine which signifies a successful Mannich reaction in the coagulant. Although optimal modification conditions for the coagulants were established at 70 degrees C (5-min activation time), the average molecular weight could not be determined for these conditions. Nevertheless, electrospray ionization mass spectrometry (ESI-MS) and matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry measurements revealed that the tannin-based coagulants obtained at lower temperatures (23 degrees C and 45 degrees C) possessed low average molecular weight (approx. 800-900 Da). Furthermore, ESI-MS and MALDITOF spectra showed that the Mannich modification resulted in the depolymerisation of the quebracho tannin, leading to a reduction in units of higher mass fractions in the synthesized coagulant, which contrasted with the spruce tannin. Jar test experiments with surface and industrial process waters demonstrated that the tannin coagulants enhanced particle settling effectively.
      原文链接:
    • NSTL
    • Elsevier

    Preparation of nanocellulose-polyvinyl alcohol composite hydrogels from Desmodium intortum (Mill.) Urb.: Chemical property characterization

    Dong, Rong-shuLu, FengLiu, Pan-daoLi, Xin-yong...
    9页
    查看更多>>摘要：Nanocrystalline cellulose (NCC) was extracted from Desmodium intortum (Mill.) Urb. by sulfuric acid hydrolysis, and the NCC and polyvinyl alcohol (PVA) were fused together by repeated freezing and thawing cycles to obtain nanofiber-polyethylene. The alcohol composite hydrogel was characterized by XRD, FTIR, and SEM methods. The results showed that nanocellulose is primarily blended with polyvinyl alcohol through physical cross-linking, and the water retention of the composite hydrogel is obvious. Specifically, when the amount of NCC added was 0.4%, the water content increased to 94.26%. In short, the nanocellulose extracted from Desmodium intortum (Mill.) Urb. can effectively improve the water retention and thermal stability of PVA, which provides an effective theoretical basis for the hydrogel in medical dressings and improves the application value of Desmodium intortum (Mill.) Urb.
      原文链接:
    • NSTL
    • Elsevier

    Anti-microbial activity of citronella (Cymbopogon citratus) essential oil separation by ultrasound assisted ohmic heating hydrodistillation

    Zhang, XiaonanZhu, HongweiWang, JialiLi, Fenglan...
    10页
    查看更多>>摘要：Microbes like fungi and bacteria pose severe damage to crops. In this study, citronella essential oil (EO) was extracted by ultrasonic-assisted ohmic heating method. We tested Pseudocercospora (PF), Streptomyces acidus (SA), Solanaceae Ralstonia (RS) and Erwinia Cartovora subsp Cartovora Borgey (ECCB) with different concentrations of EO solutions. When EO concentration reached 3 mu g/mL, the anti-fungal solution had a desirable effect on killing PF. The minimum inhibitory concentration (MIC) of the EO anti-bacterial solution was 0.625 mu g/mL, while the minimum bactericidal concentration (MBC) was 1.25 mu g/mL. Meanwhile, the optimal yield of EO underwent optimization by a single factor combined with response surface methodology: extraction time of 40 min, ultrasonic power of 180 W, a liquid-solid ratio of 7, the best ohmic current intensity of 5 A, and optimal extraction rate of EO of 22.91 +/- 0.13 mL/kgDW. In addition, compared with traditional water distillation (NHD), the ultrasound assisted ohmic heating hydrodistillation (UAOHH) was more energy-saving and had a higher extraction rate. The above results indicate the EO of citronella has an excellent antimicrobial activity.
      原文链接:
    • NSTL
    • Elsevier

    Evaluation of parasite and host phenolic composition and bioactivities-The Practical Case of Cytinus hypocistis (L.) L. and Halimium lasianthum (Lam.) Greuter

    Silva, Ana RitaAyuso, ManuelPereira, CarlaDias, Maria Ines...
    10页
    查看更多>>摘要：Cytinus hypocistis (L.) L. is a comestible holoparasite with great potential for cosmeceutical application. Although its high tannin content has been associated with its bioactive and inhibitory enzyme properties, this is the first report establishing a relationship between parasite and host (Halimium lasianthum (Lam.) Greuter) phenolic profile and bioactive properties. Thus, five extracts (aerial and root extracts of non-parasited and parasited H. lasianthum and C. hypocistis) were evaluated. The tentative identification of both species comprises 39 phenolic compounds. Hydrolysable tannins and flavonoids were the main identified groups in C. hypocistis and H. lasianthum extracts, respectively. Regarding bioactivities, C. hypocistis exhibited excellent antioxidant results both in Oxidative Haemolysis (OxHLIA) and inhibition of Thiobarbituric Acid Reactive Substances Formation (TBARS). The tested extracts presented antimicrobial inhibition, anti-inflammatory activity, and effective cytotoxicity against tumour cells. C. hypocistis exhibited the lowest cytotoxicity on a non-tumour cell line. Principal Component Analysis (PCA) was a suitable approach to analyse differences among samples, explaining up to 67% of data variability and suggesting no similarities between parasite and host phenolic composition and bioactivities. Therefore, this comparative study emphasises the significance of both species as a source of biologically active compounds.
      原文链接:
    • NSTL
    • Elsevier

    Lethal and sublethal effects of essential oil-loaded zein nanocapsules on a zoonotic disease vector mosquito, and their non-target impact

    Sanchez-Gomez, SusanaPagan, RafaelPavela, RomanMazzara, Eugenia...
    9页
    查看更多>>摘要：Recently the agrochemical industry is developing eco-friendly approaches based on the fabrication of biopesticides using substances, including biomass-borne products, with limited impact on human health and environment. One of these is the use of vegetable proteins, such as the corn-derived zein, as a safe nanocarrier loaded with bioactive compounds. Zein-based nanoparticles have been successfully applied to enhance the antimicrobial, antioxidant, repellent and insecticidal properties of hydrophobic substances such as essential oils (EOs). Herein, we developed two EO-loaded zein nanocapsules (NC) for mosquito larvicidal purposes. As active ingredients, we selected two Apiaceae essential oils (EO) with well documented insecticidal activities, i.e. Pimpinella anisum and Trachyspermum ammi, containing (E)-anethole and thymol as main constituents, respectively. The EO-based zein NC were prepared by self-assembly without using organic solvents, characterized for particle size by dynamic light scattering (DLS) and for stability over time and throughout stress conditions. EOloaded zein NC showed high acute toxicity on Culex quinquefasciatus 3rd instar larvae. Sublethal toxicity following 1-5 h to the LC90 was noted in terms of larval and pupal mortality, emerged adult rate, and sex ratio. The NC ecotoxicological safety was demonstrated, showing limited non-target effects on aquatic (Daphnia magna) and terrestrial (Eisenia fetida) invertebrates, as also on vertebrate cells (human keratinocytes). Overall, the P. anisum and T. ammi EO-loaded zein NC may represent effective and eco-friendly formulations to be considered in mosquito control programs, pending field evaluation of their epidemiological impact.
      原文链接:
    • NSTL
    • Elsevier

    Phytochemical and morpho-physiological changes of hyssop in response to chitosan-spraying under different levels of irrigation

    Samany, Seyed Mohammad AlaviPirbalouti, Abdollah GhasemiMalekpoor, Fatemeh
    9页
    查看更多>>摘要：Hyssop [Hyssopus officinalis L. subsp. angustifolius (Bieb.)] well-known for bearing essential oil-producing glands is a medicinal and aromatic plant with valuable properties for pharmaceutical, aromatic, and flavoring. The volatile oil from the aerial parts of hyssop harvested at flowering stage of growth is broadly applied in the cosmetics, pharmaceutical, and food industries In order to improve the growth, yield, and secondary metabolites production or active substances in hyssop, the experiment was done with factorial arrangement in randomized complete block design during two years (2016 and 2017). The Experimental treatments were three levels of the foliar spraying of chitosan at 0.0, 2.5, and 5.0 g/L under three levels of irrigation frequencies (6, 8, and 10 every days based on irrigation at 80-85% field capacity or F.C., 65-70% F.C., and 45-50% F.C., respectively). Results indicated that the chitosan-spraying at 2.5 g/L meaningfully raised the values of the canopy diameter, plant height, inflorescence height, numbers of auxiliary and flowering branches, dry herbal weight, and the concen-trations of photosynthesis pigments (Chl a, and Chl b) under different levels of irrigation frequencies. Increasing interval irrigation decreased some physiological characteristics such as biomass and photosynthesis pigments, however, the amounts of proline and carotenoid in both experimental years increased when the hyssop plants irrigated under reduced irrigation treatment. The highest values of the volatile oil content and yield were ob-tained from chitosan-spraying in reduced irrigation condition. The major constituents of the hyssop volatile oils analyzed by GC-FID and GC/MS were cis-pinocamphone, 8-pinene, trans-pinocamphone, myrtenol, bornyl ace-tate, 8-caryophyllene, and germacrene D, which the elicitation of hyssop with chitosan had positive impacts on the percentage of (cis- and trans-) pinocamphone, as the predominant compounds of the hyssop volatile oil, under reduced irrigation condition. In final, it can be concluded that the applied of chitosan decrease the negative effects of water shortages and improve the quantity and quality yield of H. officinalis under reduced irrigation condition.
      原文链接:
    • NSTL
    • Elsevier