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Physio-chemical characterization of A. mellifera honey before and after pasteurization / by Grace M. Corbantes ... [et al.].

By:

Corbantes, Grace M [author]

Contributor(s):

Herrera, Corazon V [adviser]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite, 2002. Cavite State University- Main Campus,Description: xvii, 57 pages : illustrations ; cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

638.16 C81 2002

Production credits:

College of Arts and Science (CAS)

Abstract: CORBANTES, GRACE MALLARI; CHRISTOPHER BLANCAS HUGO AND JOEY AUSTRIA PANGANIBAN, "Physico Chemical Characterization of A. mellifera Honeys Before and After Pasteurization", B.S. Thesis, Bachelor of Science in Chemistry, April 2002. Cavite State University, Indang, Cavite. Adviser: Mrs. Ma. Corazon Herrera. The study " The PhysicoChemical characterization of A. mellifera Honeys Before and After Pasteurization" was conducted at the Physical Science Laboratory, College of Arts and Sciences, Cavite State University from December 2001 to February 2002. Some analyses were also conducted at the Honey Quality Laboratory at the University of the Philippines, Los Banos, Laguna. Generally, this study aimed to characterize A. mellifera honey. Specifically, it aimed to determine the botanical origin of the honey samples through pollen analysis; to determine the physicochemical properties of A. mellifera honey and to determine the effect of pasteurization on the physicochemical properties of A. mellifera honey. A total of ten A. mellifera honey samples were collected from local apiaries and mercial outlet and were analyzed for their physicochemical properties and pollen content. The samples were grouped according to geographical source namely: Cavite (4 pies), Laguna (3 samples), Manila (2 samples) and control (1 sample). Pollen analysis showed that honeys produced by A. mellifera contained varying portions of pollen grains from common plants with Compasitae (sunflower) and Graminae (grasses) being frequently represented. The negligible amount of pollen grains moved in the control sample was due to the fact that most honey found in store had been filtrated. Pollen grains of Cavite, Laguna and Manila did not change its physical appearance after pasteurization. The results of the physico chemical analysis indicate that a significant difference existed in the ash composition, electric conductivity, free acidity, lactone, total acidity and reducing sugars content before and after pasteurization at 121°C for 15 minutes. This is due to the increase in temperature that highly affected the above parameters. However, no significant difference was found on the moisture content and pH of the samples after pasteurization. Pasteurization of honey was, therefore, only recommended for emergencies and pot as a routine procedure as it destroys the quality of honey

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Holdings ( 1 )
Title notes ( 5 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	638.16 C81 2002 (Browse shelf(Opens below))		Room use only	T-2352		00006403

Thesis (B.S. Chemistry) Cavite State University

Includes bibliographical references.

College of Arts and Science (CAS)

CORBANTES, GRACE MALLARI; CHRISTOPHER BLANCAS HUGO AND JOEY AUSTRIA PANGANIBAN, "Physico Chemical Characterization of A. mellifera Honeys Before and After Pasteurization", B.S. Thesis, Bachelor of Science in Chemistry, April 2002. Cavite State University, Indang, Cavite. Adviser: Mrs. Ma. Corazon Herrera.
The study " The PhysicoChemical characterization of A. mellifera Honeys Before and After Pasteurization" was conducted at the Physical Science Laboratory, College of Arts and Sciences, Cavite State University from December 2001 to February 2002. Some analyses were also conducted at the Honey Quality Laboratory at the University of the Philippines, Los Banos, Laguna. Generally, this study aimed to characterize A. mellifera honey. Specifically, it aimed to determine the botanical origin of the honey samples through pollen analysis; to determine the physicochemical properties of A. mellifera honey and to determine the effect of pasteurization on the physicochemical properties of A. mellifera honey.
A total of ten A. mellifera honey samples were collected from local apiaries and mercial outlet and were analyzed for their physicochemical properties and pollen content.
The samples were grouped according to geographical source namely: Cavite (4 pies), Laguna (3 samples), Manila (2 samples) and control (1 sample). Pollen analysis showed that honeys produced by A. mellifera contained varying portions of pollen grains from common plants with Compasitae (sunflower) and Graminae (grasses) being frequently represented. The negligible amount of pollen grains moved in the control sample was due to the fact that most honey found in store had been filtrated. Pollen grains of Cavite, Laguna and Manila did not change its physical appearance after pasteurization.
The results of the physico chemical analysis indicate that a significant difference existed in the ash composition, electric conductivity, free acidity, lactone, total acidity and reducing sugars content before and after pasteurization at 121°C for 15 minutes. This is due to the increase in temperature that highly affected the above parameters. However, no significant difference was found on the moisture content and pH of the samples after pasteurization.
Pasteurization of honey was, therefore, only recommended for emergencies and pot as a routine procedure as it destroys the quality of honey

Submitted to the University Library 07/18/2007 T-2352