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Optimisation of extrusion cooking conditions and characterization of rice (Oryza sativa)—Sweet potato (Ipomoea batatas) and rice-yam (Dioscorea alata) based RTE products

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Agricultural Sciences 2013年第9期4卷 12-22页

作者： elina brahma hazarika Anjan Borah Charu Lata Mahanta Department of Food Engineering and Technology School of Engineering Tezpur University Assam India

Extrusion cooking has been extensively used toproduce variety of foods like ready to eatbreakfast cereals, baby foods, snack foods, etc. Taking rice flour as the base ingredient, two locally available tuberous root vegetables, greater yam(Dioscoreaalata) and sweet potato (Ipomoeabatatas) were used in this study for the development of ready-to-eat breakfast products in asingle screw extruder. During extrusion cooking, the screw speeds ranged from 132 to 468 rpm and the barrel temperatures ranged from 103°C to 137°C. The extrudates were then analyzed for various physical and physicochemical properties. Optimization was done following ResponseSurface Methodology (RSM) using CentralComposite Design. Using screw speed, barrel temperature and feed composition as the three independent variables, the three responses taken were bulk density, expansion index and breaking strength. The optimized conditions wereused for developing 3 new products one of which alsocontained tomato pulp powder. The productswere analyzed for their physical, proximate, sensoryand antioxidant properties. There was significantcolour change in all the three samples as indicated by total colour change (ΔE). Texture analysis of the extrudate samples showed hardness values ranging from 28.68 N to 47.57 N. Amylose content was found to be 15.3% in rice-sweet potato extrudate, 14.7% in rice-yam extrudate and 18.2% in rice-sweet potato-tomato extrudate. The antioxidant profile of the extrudates studiedthrough DPPH (2,2-diphenyl-picryhydrazyl)scavenging activity and FRAP (ferric reducing antioxidant property) showed that the antioxidant capacity in all the 3 extrudates was very low. Rice flour incorporated with sweet potato wasjudged the best on sensory evaluation. Thestudy has shown that both sweet potato and greater yam tubers can be commercially exploited for the development of ready-to-eat (RTE) products.

关键词： Extrusion RSM RTE Physicochemical Properties

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Lymphoepithelioma-Like Carcinoma of Parapharyngeal Space—A Case Report with Review of Literature

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International Journal of Otolaryngology and Head & Neck Surgery 2015年第2期4卷 163-168页

作者： Produl hazarika Seema elina Punnoose John Victor Sreekala Nirmali Dutta Department of ENT NMC Specialty Hospital Abu Dhabi UAE Department of Pathology NMC Specialty Hospital Abu Dhabi UAE Department of Radiology NMC Specialty Hospital Abu Dhabi UAE

Extra-nasopharyngeal lymphoepithelioma-like carcinomas (LELC) are uncommon epithelial tumors. A few isolated case reports and series are available in literature involving the larynx, pharynx, salivary gland, lung etc., but involvement in the parapharyngeal space has not yet been reported. We aim to highlight one such case that has a clinical and radiological characteristic of a benign lesion whilst the histopathology reveals an infiltrating neoplasm. The typical clinical aggressiveness of a classical LELC of extra-nasopharyngeal lesion as described in literature is not present in our case. Also seen is an uncommon finding of abnormal branching of left external carotid artery. There is no standard treatment protocol for such a tumor;however, wide excision of this tumor in the parapharyngeal space via trans-cervical, trans-mandibular, trans-palatal approach has shown good and satisfactory tumor control of the primary site so far.

关键词： Lymphoepithelioma-Like Carcinoma (LELC) Parapharyngeal Space Trans-Cervical Trans-Mandibular Cells in Cords Lymphoplasmacytoid

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Cervico-Facial Soft Tissue Emphysema with Pneumo-Mediastinum Following Endoscopic Sinus Surgery: A Dilemma of Related or Unrelated Complication

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International Journal of Otolaryngology and Head & Neck Surgery 2013年第3期2卷 86-89页

作者： Produl hazarika Seema elina Punnoose Ananth Pai Rajeev Chaturvedi Department of ENT NMC Specialty Hospital Abu Dhabi UAE Department of General Surgery NMC Specialty Hospital Abu Dhabi UAE Department of Radiology NMC Specialty Hospital Abu Dhabi UAE

We present a rare and unusual complication of cervico-facial soft tissue emphysema with pneumo-mediastinum which occurred in a 30-year-old female Jordanian patient in our hospital in October 2010 in Abu Dhabi following FESS. CT scan evaluation of aero-digestive tract in the immediate post-operative period was done to ascertain the cause pertaining to any surgical trauma or anaesthesia related complications. Such a case previously unreported has been included in this study. A simple close monitoring after establishing the cause is usually sufficient in management of such related or unrelated complications during FESS which in our case was likely to be anaesthesia related. Published data of such a complication assists in building up a good and effective medical audit based on ethical practice. This paper stresses the importance of immediate CT scan of aero-digestive tract in evaluating the cause.

关键词： Endoscopic Sinus Surgery Cervico-Facial Emphysema Pneumo-Mediastinum Ethical Practice Medical Audit Extended Indication of Endoscopic Sinus Surgery CT Scan

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