Effect of packaging materials and storage conditions on physico-chemical, phytochemical and microstructural properties of bee pollen enriched milk powder

•Bee pollen enriched milk powder (BPEMP) was stored under different conditions.•Physico-chemical, antioxidant & microstructural analysis were done during storage.•Maximum changes in BPEMP occurred in BOPP/LDPE and PET/Al foil/LDPE at 25 & 40°C.•Maillard reaction, lactose crystallization & oxidation caused variations in BPEMP.•ALP was ideal package to maintain the stability and functionality of BPEMP.