Industrial Crops and Products
About: Industrial Crops and Products is an academic journal published by Elsevier BV. The journal publishes majorly in the area(s): Chemistry & Essential oil. It has an ISSN identifier of 0926-6690. Over the lifetime, 12116 publications have been published receiving 382065 citations.
Papers published on a yearly basis
TL;DR: A review of the present status of the chemistry, properties, uses and methods of manufacturing zein can be found in this article, where the characteristics of zein are discussed in terms of its composition, structure, solubility in various solvents and gelation properties.
Abstract: Zein is the major storage protein of corn and comprises ≈45–50% of the protein in corn. It was first identified in 1897, based on its solubility in aqueous alcohol solutions. Zein isolate is not used directly for human consumption due to its negative nitrogen balance and poor solubility in water. Current zein manufacture is limited to ≈500 tonnes per year from corn gluten meal. Zein sells for ≈US$10–40 per kilogram, depending on purity. The ability of zein and its resins to form tough, glossy, hydrophobic grease-proof coatings and their resistance to microbial attack have been of commercial interest. Potential applications of zein include use in fiber, adhesive, coating, ceramic, ink, cosmetic, textile, chewing gum and biodegradable plastics. These new applications of zein appear promising, but requires the development of low-cost manufacturing methods. This paper reviews the present status of the chemistry, properties, uses and methods of manufacturing zein. The characteristics of zein are discussed in terms of its composition, structure, solubility in various solvents and gelation properties.
TL;DR: A review of cellulose nanofibrillated cellulose (CNF) is presented in this article, covering raw materials selection, structural and chemical aspects, conventional and novel mechanical disintegration techniques, as well as biological and chemical pretreatments aimed at facilitating Nanofibril isolation.
Abstract: This review describes the recent advances-in production of cellulose nanofibrils (CNF), otherwise known as nanofibrillated cellulose (NFC), microfibrillated cellulose (MFC) or cellulose nanofibers, a material with significant barrier, mechanical and colloidal properties, low density, renewable and biodegradable character. The above properties make CNF promising for applications in such fields as papermaking, composites, packaging, coatings, biomedicine and automotive. In this review, CNF production methods are summarized, covering raw materials selection, structural and chemical aspects necessary for understanding the nanofibril extraction process, conventional and novel mechanical disintegration techniques, as well as biological and chemical pretreatments aimed at facilitating nanofibril isolation. The issues of fractionation, performed with the objective of retrieving the residual microscopic fiber fragments from CNF suspensions, are addressed. Additionally, the preparation of CNF in various forms, such as suspensions, water-redispersible powders, films or nanopapers, hydrogels and aerogels, is discussed.
TL;DR: The structure of lignin has remained one of the most difficult biopolymers to characterize, however recent advances in analytical chemistry and spectroscopy have dramatically improved our knowledge of this natural resource as discussed by the authors.
Abstract: The structure of lignin has remained one of the most difficult biopolymers to characterize, however recent advances in analytical chemistry and spectroscopy have dramatically improved our knowledge of this natural resource. This paper highlights our current understanding of lignin structure and examines the process chemistry surrounding kraft pulping. The application of this knowledge, with respect to converting lignin into novel biomaterials, biocomposites, and biofuels is examined briefly.
TL;DR: In this article, cellulose fibres and cellulose nanocrystals were extracted from rice husk using sulphuric acid (H2SO4) hydrolysis treatment.
Abstract: Cellulose fibres and cellulose nanocrystals were extracted from rice husk. Fibres were obtained by submitting the industrial rice crop to alkali (NaOH) and bleaching treatments. Nanocrystals were extracted from these fibres using sulphuric acid (H2SO4) hydrolysis treatment. The material obtained after each stage of the treatments was carefully characterized and its chemical composition was determined. Morphological investigation was performed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Fourier transform infrared (FTIR) spectroscopy showed the progressive removal of non-cellulosic constituents. X-ray diffraction (XRD) analysis revealed that the crystallinity increased with successive treatments. The thermal stability of the rice husk fibres and cellulose nanocrystals was also investigated using thermogravimetric analysis (TGA).
TL;DR: A review of the bio-active properties of essential oils and their medicinal potential is presented in this article. But, the review is limited to essential oils extracted from plants by steam distillation and various solvents.
Abstract: Essential oils (EOs) are complex mixtures of low molecular weight compounds extracted from plants by steam distillation and various solvents. Terpenoids and phenylpropanoids are the major constituents which provide characteristic aroma and biological properties to EOs. Essential oils are prescribed for a variety of health problems by traditional systems of medicine, all over the world. Various pharmaceutical and biological activities like, antibacterial, antifungal, anticancer, antimutagenic, antidiabetic, antiviral, antiinflammatory, and antiprotozoal properties are assigned to them. Extensive phytochemical analysis has lead to the characterization and identification of major components of EOs which are of wide interest, especially to cosmetic and pharmaceutical industries. Current status of the bio-active properties of EOs and their medicinal potential are covered in this review.