52 research outputs found
Antimicrobial Edible Coating Composed of Chitosan Polyvinyl Alcohol and Zinc-Coated Halloysite Nanotubes
No full textChanges in everyday activities like food packaging are required due to the global shift from a linear to a circular economy. Therefore, industrial, and institutional research centers are interested in using biodegradable materials like polyvinyl alcohol and natural raw materials like chitosan to develop novel food packaging films. Edible coating materials have been extensively researched to extend the shelf life of fruits and vegetables and reduce the risk of ingesting chemical reagents. Chitosan (CH) is widely used as a natural preservative for fruits and vegetables, but its poor mechanical, and water resistance limits its use. To improve the properties of chitosan, we prepared chitosan composite films by incorporating polyvinyl alcohol (PVA) with varying amounts of halloysite nanotubes (HNTs) and zinc oxide coated HNTs (ZnHNTs) into a 1% chitosan solution. The effects of PVA/CH blended films with varying concentrations of HNTs and ZnHNTs were assessed using SEM/FESEM, FTIR, and XRD. FTIR and XRD confirmed the presence of zinc on the HNT surface. SEM showed a rough surface that increased roughness with HNT/ZnHNTs addition. Adding ZnHNTs and HNTs improved the chitosan/PVA film\u27s tensile strength (TS) and elongation at break (EAB) with a decrease in light transmittance. We tested the films\u27 antibacterial activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). The CS/PVA/ ZnHNTs films were significantly antimicrobial over two weeks. Coatings made of PVA and chitosan (80/20 ratio) with concentrations (0, 0.2%, 0.4%, and 0.6%) of HNTs and ZnHNTs were selected for further study. The results indicated that the bio‐based films can extend food shelf life and could be used as novel active food packaging materials. Among them, the most promising film was 0.6% ZnHNTs, showing a good preservation effect
Author Identification in Malayalam using n-grams
No full textAuthor identification is the problem of identifying the author of an anonymous text or text whose authorship is in doubt from a given set of authors. The works by different authors are strongly distinguished by quantifiable features of the text. This paper deals with the attempts made on identifying the most likely author of a text in Malayalam from a list of authors. Malayalam is a Dravidian language with agglutinative nature and not much successful tools have been developed to extract syntactic & semantic features of texts in this language. We have done a detailed study on the various stylometric features that can be used to form an authors profile and have found that the frequencies of word collocations can be used to clearly distinguish an author in a highly inflectious language such as Malayalam. In our work we try to extract the word level and character level features present in the text for characterizing the style of an author. Our first step was towards creating a profile for each of the candidate authors whose texts were available with us, first from word n-gram frequencies and then by using variable length character n-gram frequencies. Profiles of the set of authors under consideration thus formed, was then compared with the features extracted from anonymous text, to suggest the most likely author.Cochin University Of Science And Technolog
The role of Nepali carpet manufacturing industries in alleviating rural poverty : a case study of rural women workers : a thesis presented in partial fulfilment of the requirements for the degree of Master of Applied Science in Agricultural Systems and Management at Massey University
No full textIn 1996 Nepal had a per capita gross national product of $US200, the fourth lowest in the world. Nepalese rural women, like those in many developing countries, are even poorer than men. Further, their contribution towards household activities remain unrecognised and unmeasured. It is because of poverty that rural women have started to move from subsistence farming to the formal sector in order to better meet their economic needs. Regardless of how much labour women put into the agricultural sector, it has yielded very little cash income. The Nepali carpet manufacturing industry has provided employment for rural women. It is also a significant user of New Zealand crossbred wools. Wages earnt by rural women through the carpet industry contribute to the alleviation of rural poverty by increasing the total annual income of the households in which they reside. The purpose of this study was to determine the socio-economic impact of the carpet manufacturing industries on the well-being of rural women workers. In addition, the benefits of, and limitations to, rural women workers becoming involved in the carpet industries were accessed. Four levels of respondents were interviewed for the study: 5 key informants, 5 focusgroups (n=10) of rural women workers, 36 carpet manufacturers, and 144 rural women workers. The survey data were evaluated relative to a conceptual model developed to explain total annual household income, a proxy variable for rural poverty alleviation. The model included non-economic (social and demographic) and economic characteristics of households. Variables included in a multiple regression (reduced) model collectively explained 50% of the variation in total annual household income. Among all the non-economic and economic characteristics outlined in the conceptual framework, the number of working adults per household was most important in influencing household income. One person increased total annual household income by Rs 15,228 per annum and a 5% increase in total annual income was associated with additional savings by Rs 67.08 per month. It was concluded that the Nepali carpet industries have assisted in alleviating rural poverty amongst rural women through income generation. New Zealand wool exports to Nepal therefore appear to have an indirect positive benefit on rural households by enabling carpet industry expansion. Keywords: Nepal, carpet industries, rural women workers, total annual household income, and rural poverty alleviation. Title: The role of Nepali carpet manufacturing industries in alleviating rural poverty: a case study of rural women workers. Author: Sindhu Karki, 1997. Degree: Master of Applied Science
Phenolics and Furano-Flavonoids from Karanja (Pongamia Pinnata) Seed Oil and their Antioxidant Activities
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Phenolics and Saponins from Karanja (Pongamia Glabra) Seed Meal and their Biological Activities
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Studies on Correlation between Protein Solubility and Extraction of Saponins from Karanja Seed
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
High protein mix using composite protein isolates from selected oilseeds.
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Effect of thermal treatment on the glucosinolate content in mustard seeds.
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Detection of Ochratoxin by Immunoassay
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Production of the microbial chitosanase and protease using wheat bran under solid state fermentation and optimisation of the process variables by response surface methodology.
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
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