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Comparative proteomic analysis of the closely related honey samples by mass spectrometry
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Glycoscience.
2023 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Jämförande proteomisk analys av de närbesläktade honungsproverna med masspektrometri (Swedish)
Abstract [sv]

Honung har använts flitigt som både medicin och mat sedan gamla tider. Den produceras av honungsbin, som kombinerar blommig nektar med enzymer i deras övre aero-matsmältningssystem, och sedan koncentrerar den i bikupan genom en process som kallas uttorkning. Beroende på dess blomkälla kan honung ha en mycket komplex kemisk sammansättning. Kolhydrater spelar en dominerande roll i sammansättningen av honung. Dessutom inkluderar huvudkomponenterna i honung organiska syror, mineraler, aminosyror, vitaminer och proteiner.

Fram till nyligen var lite känt om honungsproteomet, eftersom det inte hade undersökts i stor utsträckning på grund av den relativt lilla mängden protein som finns i honung. Den här studien beskriver den fullständiga proteomiska profilen för tre olika närbesläktade honungsprover, och framhäver deras unika och delade proteiner. En förbättrad isoleringsmetod som involverade dialys användes för effektiv extraktion av proteiner, och masspektrometribaserad proteomik användes, vilket gav fördelar som selektivitet, känslighet och förmågan att analysera stora datamängder.

De identifierade proteinerna har väsentliga potentiella fördelar för mänskligheten, inklusive antioxidanter, sårläkning, immunmodulerande, anti-aging, anti-cancer, anti-diabetes, lever-njurskyddande och neuroprotektiva aktiviteter förknippade med de stora kungliga geléproteinerna som finns i alla honungsprover. De särskiljande funktionerna hos varje honungsprov diskuteras i denna forskning, vilket ger insikter för utvecklingen av terapeutiska processer och produkter.

Abstract [en]

Honey has been widely used as both medicine and food since olden times. It is produced by honey bees, who combine floral nectar with enzymes in their top aero-digestive system, and then concentrate it within the beehive through a process called dehydration. Depending on its floral source, honey can have a highly complex chemical composition. Carbohydrates play a predominant role in the composition of honey. Furthermore, major components of honey include organic acids, minerals, amino acids, vitamins, and proteins.

Until recently, little was known about the honey proteome, as it had not been extensively explored due to the relatively small quantity of protein present in honey. This study describes the complete proteomic profile of three different closely related honey samples, highlighting their unique and shared proteins. An improved isolation method involving dialysis was employed for the effective extraction of proteins, and mass spectrometry-based proteomics was utilized, offering advantages such as selectivity, sensitivity, and the ability to analyze large datasets.

The proteins identified have essential potential benefits for mankind, including antioxidant, wound healing, immunomodulatory, anti-aging, anti-cancer, anti-diabetic, hepato-renal protective, and neuroprotective activities associated with the major royal jelly proteins found in all honey samples. The distinctive functions of each honey sample are discussed in this research, providing insights for the development of therapeutic processes and products.

Place, publisher, year, edition, pages
2023.
Series
TRITA-CBH-GRU ; 2023:292
Keywords [en]
Honey Proteomics, Mass Spectrometry, Gene Ontology (GO), Therapeutics, Human health
Keywords [sv]
Honungsproteomik, masspektrometri, genontologi (GO), terapi, Mänsklig hälsa
National Category
Pharmaceutical and Medical Biotechnology
Identifiers
URN: urn:nbn:se:kth:diva-341731OAI: oai:DiVA.org:kth-341731DiVA, id: diva2:1823409
Subject / course
Biotechnology
Educational program
Master of Science - Industrial and Environmental Biotechnology
Supervisors
Examiners
Available from: 2024-01-02 Created: 2024-01-02 Last updated: 2025-02-17

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