Investigations into the physicochemical, biochemical and antibacterial properties of Edible Bird’s Nest
نویسندگان
چکیده
Edible bird’s nest (EBN)islong known as a delicacy and medicine among the Chinese communities all over the world. This work reports thephysicochemical, biochemical and antibacterial properties of EBN obtained from the swiftlet premises in Batu Pahat, Johor, Malaysia. Carbohydrates (46.47%) and proteins (35.8%) were the major constituents, with little fats (1.5%) and no fibre. Amino acid analysis by AccQ.Tag method revealed all eighteen types of amino acids including the eight essential ones. The heavy metal contents were within infant formula specification limits. Sodium, magnesium, potassium and calcium were the major minerals found. Alkaline conditions and heat treatment were the parameters that significantly affected the protein extraction from EBN. Out of the four EBN extracts (Run 1, Run 10, Oda and Goh) prepared; Run 10 had the highest protein content and anti-oxidant power, however, no direct correlations between protein content and the anti-oxidant power could be established. Oda and Goh extracts produced visible bands in the electrophoretic analysis in comparison to the Run 10 and Run 1 extracts. None of the extracts showed any antibacterial activity towards Escherichia coli, Klebsiella pneumoniae, Bacillus subtilis and Staphylococcus aureus.
منابع مشابه
Antibacterial and Antioxidant Properties of Methanolic Extracts of Some Native Edible Plants Collected from Kermanshah, Western Iran
Background: There is growing demand to improve physicochemical, microbiological, and sensory properties of fresh foods using natural herbal antimicrobial and antioxidant compounds. The aim of the present study was to investigate antioxidant and antibacterial properties of some native edible plants of Kermanshah, Western Iran. Methods: The methanolic extracts of leaves of Falcaria vulgaris, All...
متن کاملAntibacterial, antioxidant and optical properties of edible starch-chitosan composite film containing Thymus kotschyanus essential oil
Thyme Essential oils (EO) with antimicrobial and antioxidant properties are widely used in pharmaceutical, cosmetic, and perfume industry. It is also used for flavoring and preservation of several foods. Nowadays, packaging research is receiving a considerable attention due to the development of eco-friendly materials made from natural polymers such as starch and chitosan. In this study Thymus ...
متن کاملBlending of Milkfat with Refined Palm Oil and its Fractions: Impact on Physicochemical Properties and Fatty Acid Profile
Milkfat has the highest price among all the edible oils and fats and plays a significant role in the economics, nutrition and physicochemical properties of milk and milk products. It can be admixed or replaced with less expensive oils and fats of vegetable or animal origins notably palm oils. Blending of edible fat with vegetable oils is a common practice in many countries to improve the physic...
متن کاملPreparation and Characterization of Three Tilmicosin-loaded Lipid Nanoparticles: Physicochemical Properties and in-vitro Antibacterial Activities
Tilmicosin (TLM) is an important antibiotic in veterinary medicine with low bioavailability and safety. This study aimed to formulate and evaluate physicochemical properties, storage stability after lyophilization and antibacterial activity of three TLM-loaded lipid nanoparticles (TLM-LNPs) including solid lipid nanoparticles (SLNs), nanostructured lipid carriers (NLCs) and lipid-core nanocapsu...
متن کاملThe Effect of Spinach Powder and Egg-Shell Powder on Physicochemical and Edible Qualities of Gluten-Free Cake
Background: Replacement of the gluten is one of the challenging issues in the food industry, since producing nutritious and functionally acceptable gluten-free foods is difficult. The cake is a cereal-based product that attracts the consumers due to its various flavors, long shelf-life, and relatively low cost. Considering the competition in markets and the increased demand for functional and n...
متن کامل