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Home > Post Harvest Storage Stability of Kinnow Mandarin Through Applications of Silver Nanoparticles Based Coatings

Post Harvest Storage Stability of Kinnow Mandarin Through Applications of Silver Nanoparticles Based Coatings

Thesis Info

Access Option

External Link

Author

Shah, Syed Wasim Ahmad

Program

PhD

Institute

University of Haripur

City

Haripur

Province

KPK

Country

Pakistan

Thesis Completing Year

2017

Thesis Completion Status

Completed

Subject

Food Science & Technology

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/10035/1/Syed_wasim_Ahmad_Shah_Food_Scie_%26_Tech_2017_HSR_UoH_haripur_15.09.2017.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726973174

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Influence of carboxy methyl cellulose (CMC) and guar gum based silver nanoparticles containing coatings was studied on the postharvest storage stability of kinnow mandarin (Citrus reticulata cv. Blanco) stored at 4 oC and 10 oC (85-95% relative humidity) for a period of 120 days. Physicochemical qualities, microbiological evaluations, quantities of three major aroma compounds (limonene, linalool, γ-terpinene) and sensory attributes were monitored after every 15 days of storage. Microbiological quality was assessed by monitoring the principal spoilage microbes (yeast and moulds, psychrotrophic bacteria, E. coli, Salmonella and Staphylococcus aureus). Sensory evaluation was carried out using 9 point hedonic scale by a panel of 25 experienced penalists for peel colour, flesh colour, juice colour, fruit texture, fruit taste, fruit flavour and overall acceptability. Overall, the results revealed an increase in peel pitting, total soluble solids (TSS), total sugars, reducing sugars, non-reducing sugars, pH and weight loss in the fruits, but this increase was comparatively less significant in coated fruits stored at 4 oC. Ascorbic acid, total phenolics and antioxidant activity were significantly enhanced in coated fruits stored at 4 oC. Titratable acidity was significantly decreased during storage except for coated kinnow stored at 4 oC. In control samples stored at 10 oC, a high intensity of fruit rotting and no chilling injury was observed. Total aerobic psychrotrophic bacteria, and yeast and moulds were noticed in all treatments during storage, but the growth was not significant in coated fruits at 4 oC. Staphylococcus aureus was not noticed in coated fruits stored at 4 oC, while E. coli and Salmonella were not found in any treatment during storage. Limonene, linalool and γ-terpinene concentrations were significantly reduced during storage in uncoated, and those kinnows coated and stored at 10 oC. However, the storage did not alter the qualitative aroma profile of kinnow. Hedonic scores of sensory evaluation panel appeared to correlate well with the aroma profile and manifested the GC-MS results. Based on the present study, the quality of kinnow fruit can be kept good for 4 months, when stored at 4 oC and for 2 months at 10 oC.
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9 نویں ۰قمیص

نویں   ۰قمیص

                اج اوہدی بھین دیاں نگاہواں اوہدے ٹانکے لگے کپڑاں تے اٹک کے رہ گیاں اوہ روز ایہناں کپڑاں نوں ویکھدی سی۔ خاکی رنگ دی پتلون جیہدے تے جگہ جگہ خاکی یا اوہدے نال ملدے جلدے ٹانکے لگے ہوئے سن۔ سفید رنگ دی قمیض جہیڑی کسے زمانے وچ سفید رہی ہوئے گی پر ہن حالات دی گردش نے اوہدے تے زردی بکھیر دتی سی۔ ایس قمیض دے پھٹے ہوئے کالر حمیدہ روز دیکھدی سی پر اج اوہنوں ایویں لگ رہیا سی جویں اکرم دیا نگاہواں چیک چیک کے اوہدے نال سوال کررہیاں ہون پئی۔ ’’باجی! اسیں غریب کیوں آں؟‘‘ ’’باجی! ساڈے ماں پیو مرگئے؟‘‘ ’’خدا دا ناں کہیں رحیم رکھ دتا‘‘

                فیر حمیدہ سوچن لگ پئی اکرم نے سکول دا زمانہ تے ایہناں ای کپڑاں وچ گزار دتا پرہن تے اوہدا دسویں دا نتیجہ وی نکلن والا سی فیر اوہ کالج وچ داخلہ لوے گا تے اودوں اوہدے کول نویں کپڑے ہونے چاہیدے نیں تے۔۔۔ فیر۔۔۔

                رشیدہ دے چاچے دی شادی وی آرہی اے اوہدے تے وی نویں کپڑے ہونے چاہیدے نیں۔

                اوہ اکرم دے پھٹے ہوئے ہوئے کالر وہندی جارہی سی تے اوہنوں اپنیاں تے اکرم نوں پیش آون والیاں مصیبتاں یاد آرہیاں سن۔ کس مصیبت نال اوہناں گزارہ کیتا۔ تے اکرم نے کس مصیبت نال اپنی پڑھائی جاری رکھی۔ بھکے رہے پر کسے دے اگے ہتھ نہ پھیلائے۔

                حمیدہ دا دکھی ذہن ماضی وچ گواچ گیا۔۔۔ اوہنوں اپنے ماں پیو شدت نال یاد آون لگ پئے۔ ’’جے اوہ ہندے تے اکرم دی ایہہ حالت ہونی سی؟‘‘ ’’نئیں کدی وی نئیں‘‘

                ماں تے پہلے ای مرگئی سی تے جدوں اک مہینہ پچھوں پیو...

دور جدید میں کرائے کی ماں (Surrogate Mothering) کا تصور اور اسلامی نقطہ نظر

Artificial insemination is a means of attaining pregnancy not involving sexual intercourse. A couple having trouble getting pregnant can benefit from the exact timing and placement of the sperm. It can overcome instances where a woman's immune system can reject her partner's sperm as invading molecules. In the case of an impotent male, donor sperm may be used. It is also a means for a woman to conceive when two women wish to parent a child, or a single woman does not have a male partner, when she does not want a male partner, or when a male partner's physical limitation impedes his ability to impregnate her by sexual intercourse. A relationship in which one woman bears and gives birth to a child for a person or a couple who then adopts or takes legal custody of the child; called Surrogate Motherhood. In surrogate motherhood, one woman acts as a surrogate, or replacement, mother for another woman, sometimes called the intended mother, who either cannot produce fertile eggs or cannot carry a pregnancy through to birth, or term. Surrogate mothering phenomena is prevailing all over the world now days especially in America and European countries. The first recognized surrogate mother arrangement was made in 1976. Surrogate mothering is also introducing in Islam in some extend but Islam has its own laws regarding each and every problem of life. This Article is a summary of all positive and negative aspects of said issue and a critical analysis of its implications according to the Islamic injunctions in modern era.

Reading Difficulties in Children

Reading plays an important role in the learning process. It involves both decoding and comprehension skills. Reading plays a vital role in the acquisition of knowledge, which leads to independent learning. But if the child faces problems in learning to read, then these reading difficulties do compound the other language learning problems, like writing, spelling, pronunciation, comprehension, etc. which affects the child's progress in school. These reading difficulties block access to a wide range of information acquisition. Therefore the teachers need to be aware of children's reading difficulties and be able to implement remedial strategies to address these problems. This research study was conducted to identify reading difficulties in English of children at the primary level in the multi-lingual context of Pakistan, where English is a second, third or a foreign language for most of the children. The purpose of the study was to identify children's reading difficulties and to explore the facilities available for dealing with the same. The study was divided into two phases. Phase I was basically a needs analysis done in a private primary school to identify the children's reading difficulties by using standardized assessment tools. The language teachers were also interviewed and their reading lessons observed to find out their awareness level for catering to children's reading difficulties. Phase II was an exploration of the facilities available for dealing with children's reading difficulties in remedial centers and selected schools. Trained reading teachers were interviewed and their remedial sessions were observed in the remedial centers and the schools working in association with these centers, to recommend possible ways of helping teachers in dealing with reading difficulties of children in a multi-lingual school context. The study revealed that children do have reading difficulties. The test analysis revealed errors of omissions, substitutions, reversals, deletions, repetitions, etc. It was found that these problems are mostly related to children's lack of language exposure, inappropriate teaching of reading, lack of reading culture, multi-lingual context, etc. The teachers in the sample school were found to be unaware of children's specific reading difficulties and therefore were not able to remediate the same. In contrast, trained reading teachers in a few remedial centers and schools are providing remedial training to children by using phonic and multi-sensory approaches to remediate the children's reading difficulties. However, these facilities are very expensive. Therefore only the elite class can afford to access their services Thus this research study