The present study was focussed to analysed key component present in dried pomegranate peel powder.
The attempt was made to dehydrate pomegranate peel at different temperatures 40-80°C in a tray drier. The initial moisture content of pomegranate peel was 44% dry basis. The drying behaviour of pomegranate peel showed that moisture content decrease with increase in time periods at all temperatures indicating that the dehydration occurs in falling rate period studied drying characterstics of peel isolated from pomegranate concluded that drying took place in falling rate period.
The results show that % antibiotic activity significantly decreases from 66.9 mg/g CGE, db to 42.4 mg/g CGE, db with increase in temperature from 40°C to 60 °C. On the other hand, anthocyanin content decreases from 102.3 mg/g CGE, db to 83.7 mg/g CGE, db, Total flavonoid content decrease from 21.03 mg/g CGE, db to 10.5 mg/g CGE, db with increase in temp from 40 to 80°C.
Table of Contents
1. INTRODUCTION
2. REVIEW OF LITERATURE
3. MATERIALS AND METHODS
4. RESULTS & DISCUSSION
5. SUMMARY
6. REFERENCES
Research Objectives and Themes
This thesis investigates the potential of utilizing pomegranate peel, an agricultural byproduct, by analyzing its phytochemical properties and evaluating the impact of different tray drying temperatures on its key functional components, such as antioxidant activity, anthocyanins, and flavonoids.
- Phytochemical profiling of fresh pomegranate peel.
- Evaluation of drying behavior and dehydration kinetics.
- Assessment of degradation in phenolic compounds at temperatures from 40°C to 80°C.
- Analysis of antioxidant activity and shelf-life potential in food matrices.
- Extraction and characterization of functional constituents for industrial utility.
Excerpt from the Thesis
4.3. Dehydration characteristics of pomegranate peel
The attempt was made to dehydrate pomegranate peel at different temperatures 40-80°C in a tray drier. The initial moisture content of pomegranate peel was 44%dry basis. The moisture content was reduced to about. The drying behaviour of pomegranate peel showed that moisture content decrease with increase in time periods at all temperatures indicating that the dehydration occurs in falling rate period kaur et al (2006) studied drying characterstics of peel isolated from tomato pomace in cabinet fludized bed dryer concluded that drying took place in falling rate period .
Summary of Chapters
1. INTRODUCTION: Provides an overview of the botanical and nutritional importance of pomegranate, highlighting the health-promoting benefits and high content of bioactive compounds in the peel.
2. REVIEW OF LITERATURE: Examines previous scientific studies regarding the properties, extraction methods, and various utilization possibilities of pomegranate peel in the food and pharmaceutical industries.
3. MATERIALS AND METHODS: Describes the systematic procedures for sample preparation, the specific methodologies used for phytochemical analysis, and the experimental setup for the dehydration process.
4. RESULTS & DISCUSSION: Presents the empirical data obtained from the experiments, specifically analyzing the impact of drying temperatures on total phenols, flavonoids, anthocyanins, and antioxidant activity.
5. SUMMARY: Condenses the key findings of the investigation related to the processing and dehydration of pomegranate peel components.
6. REFERENCES: Lists the academic literature and citations used to support the research findings.
Keywords
Pomegranate peel, Dehydration, Tray drier, Antioxidant activity, Anthocyanins, Flavonoids, Phytochemicals, Falling rate period, Phenolic content, Functional food, Drying temperature, Bioactive compounds.
Frequently Asked Questions
What is the core focus of this research?
The thesis focuses on studying the functional and phytochemical properties of pomegranate peel and understanding how thermal dehydration affects these valuable components.
What are the primary thematic areas covered?
The work covers the processing of pomegranate, the physicochemical analysis of the peel, the kinetics of the drying process, and the quantification of bioactive compounds under various temperatures.
What is the main goal of this study?
The primary aim is to analyze key components in dried pomegranate peel powder and determine the optimal temperature conditions for processing, considering the degradation of antioxidants and pigments.
Which scientific methods were employed?
Standard analytical methods were used, including AOAC moisture determination, UV/VIS spectrophotometry for measuring antioxidant activity (DPPH assay), and HPLC analysis for phenolic compounds.
What topics are discussed in the main body?
The main body details the experimental procedures for extraction, the chemical characterization of fresh and processed peel, and the specific impact of heating on drying efficiency and compound retention.
Which keywords best characterize this work?
Key terms include pomegranate peel, dehydration, antioxidant activity, phenolic content, functional components, and drying kinetics.
How does temperature affect the antioxidant content in the peel?
The results show a significant decrease in antioxidant activity, anthocyanins, and total flavonoid content as the drying temperature increases from 40°C to 80°C.
What significance do the dehydration findings hold?
The study confirms that dehydration occurs in the "falling rate period" and provides data to help processors balance the need for drying with the retention of heat-sensitive functional compounds.
- Arbeit zitieren
- Anonym (Autor:in), 2019, Studies on extraction, degradation and utilization of functional components from pomegranate peel, München, GRIN Verlag, https://www.grin.com/document/1453142
