“studies on quality of solar and tray dried figs”.

102 Pages·2016·1.46 MB·English

“STUDIES ON QUALITY OF SOLAR
AND TRAY DRIED FIGS”.

By

P. SOWJANYA
B.H.Sc (Home Science)

THESIS SUBMITTED TO
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY
IN PARTIAL FULFILMENT OF THE REQUIREMENTS
FOR THE AWARD OF THE DEGREE OF

MASTER OF FOOD SCIENCE AND TECHNOLOGY

INTERFACULTY PG PROGRAMME

POST GRADUATE AND RESEARCH CENTRE
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY
RAJENDRANAGAR, HYDERABAD – 500 030

JUNE, 2004
CERTIFICATE

Mrs. P. SOWJANYA has satisfactorily prosecuted the course of
research and that the thesis entitled ““STUDIES ON QUALITY OF
SOLAR AND TRAY DRIED FIGS” submitted is the result of original
research work and is of sufficiently high standard to warrant its
presentation to the examination. I also certify that the thesis or part
thereof has not been previously submitted by her for a degree of any
university.

Date : (Dr. P. VENKATA RAO)
Place : Hyderabad Major Advisor
CERTIFICATE

This is to certify that the thesis entitled ““STUDIES ON
QUALITY OF SOLAR AND TRAY DRIED FIGS” submitted in
partial fulfillment of the requirements for the degree of MASTER OF
FOOD SCIENCE AND TECHNOLOGY for Acharya N.G. Ranga
Agricultural University, Hyderabad, is a record of the bonafide
research work carried out by Mrs. P. SOWJANYA under my guidance
and supervision. The subject of the thesis has been approved by the
student’s advisory committee.

No part of the thesis has been submitted for any other degree or
diploma. The published part has been fully acknowledged. All assistance
and help received during the course of the investigation have been duly
acknowledged by the author of the thesis.

(Dr. P VENKATA RAO)
Chairman of the Advisory Committee

Thesis approved by the student advisory committee

Chairman (Dr. P. VENKATA RAO)
Professor,
Department of Horticulture,
Rajendranagar, Hyderabad-30.

Member (Dr. J. DILIP BABU)
Senior Scientist,
AICRP on PHT,
Rajendranagar, Hyderabad-30.

Member (Dr. S. SUMATHI)
Associate Professor
Post Graduate Research Centre
Rajendranagar, Hyderabad-30.

Member (Dr. K. DHANALAKSHMI)
Assistant Professor,
Dept. of Veterinary Microbiology
College of Veterinary Science,
Rajendranagar, Hyderabad-30.
DECLARATION

I, Mrs. P. SOWJANYA hereby declare that the thesis entitled
“STUDIES ON QUALITY OF SOLAR AND TRAY DRIED FIGS”
submitted to the ACHARYA N.G. RANGA AGRICULTURAL
UNIVERSITY for the degree of MASTER OF FOOD SCIENCE
AND TECHNOLOGY is the result of original research work done by
me. I also declare that any material contained in the thesis has not been
published earlier.

Date :
Place : Hyderabad (P. SOWJANYA)
CONTENTS

Chapter Title Page No.

I INTRODUCTION
II REVIEW OF LITERATURE
III MATERIALS AND METHODS
IV RESULTS
V DISCUSSION
VI SUMMARY
LITERATURE CITED
APPENDIX
ABBREVATIONS

% - Percentage
B - Degree Brix
C - Degrees Celsius
g - micrograms
ANOVA - Analysis of variance
AOAC - Association of Official Analytical Chemists
g - grams
HDPE - High density poly ethylene
hrs - Hours
kg - kilogram
KMS - Potassium metabisulphite

mg - milligrams
ml - milli liter
mt - metric tons
N - Normality
ppm - parts per million
TSS - Total soluble solids
APPENDIX – I

SCORE CARD

Name :

Date :

Time :

You are requested to evaluate the dried fig for the following sensory
attributes as per the guidelines indicated below.

Products Attributes
Appearance Colour Flavour Texture Overall
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.

Comments / suggestions :

Signature of evaluator

Scores :

Excellent : 5
Good : 4
Fair : 3
Poor : 2
Very poor : 1
LIST OF TABLES

Table No. Title Page No.
1. Proximate composition of fresh figs
2. Effects of drying methods on moisture
content in fig (%)
3. Effect of drying methods on reducing sugar
content in fig (%)
4. Effect of drying methods on ash content in fig
(g / 100 g)
5. Effect of drying methods on Calcium content
in fig (mg / 100 g)
6. Effect of drying methods on protein content
in fig (%)
7. Effect of drying methods on crude fiber
content in fig (g / 100 g)
7.1 Effect of drying methods on appearance of
dried fig

7.2 Colour
7.3 Flavour
7.4 Texture
7.5 Overall acceptability
8.1 Effect of drying methods on yeast and mould
count of dried fig (100) (Cfu / g)
8.2 PCA (Plate Count Agar) (10) (Bacterial
count) (Cfu/g)
LIST OF PLATES

Plate No. Title Page No.
1. Fig plant (Ficus carica)
2. Fresh fig fruits
3. Solar drier
4. Tray drier
5. Final products of solar dried method
6. Final products of tray dried method
LIST OF FIGURES

Fig. No. Title Page No.
1. Effect of drying methods on moisture content
in fig (%)
2. Effect of drying methods on reducing sugar
content in fig (%)
3. Effect of drying methods on ash content in fig
(g/100 g)
4. Effect of drying methods on calcium content
in fig (mg/100 g)