Use of Paper Spray Mass Spectrometry for Determining the Chemical Profile of Green Cavendish Banana (Musa AAA) Peel and Pulp Flours and Evaluation of Its Functional Potential

Abstract

Green Cavendish banana peel and pulp flours were obtained by three drying methods: oven dryer at 70 °C; air fryer at 180 °C and domestic oven at 180 °C, being the latter two new possibilities. Bioactive constituents using paper spray ionization mass spectrometry (PS-MS), phenolic identification and quantification by ultra-performance liquid chromatography with UV-Visible detection (UPLC/UV-Vis) and antioxidant capacity were evaluated. Phenolic acids showed distinct thermal stability between the treatments. Gallic acid was the predominant compound, ranging from (29.56 to 1211.74 mg 100 g−1) and had higher concentration than that found in other bananas described in literature. Green Cavendish banana flour is an advantageous source of bioactive compounds and antioxidant capacity, especially its peel. 26 compounds were identified by PS-MS: phenolics,organic acids, sugars, amino acid, phytosterol, iridoid and coumarin derivatives. Green Cavendish banana flour has great functional potential, and the air fryer can be a promising alternative for drying.

Evaluation of the Chemical Profile and Antioxidant Capacity of Green, Brown, and Dark Propolis

“…PS-MS is similar to the electrospray ionization (ESI) technique, and has been applied in fraud detection, pesticide analysis, and phytochemical characterization of various foods. This technique provides a fast and versatile approach to complex sample analysis, with a wide mass range and minimal sample preparation [ 27 ].…”

“…However, there are no reports on the presence and comparative data of the types of phenolic compounds and antioxidant activity among the different varieties of Brazilian propolis. Thus, it is essential to investigate the chemical composition of different species and their comparative evaluation [ 27 ]. In this context, when evaluating the antioxidant activity and the chemical profile of green, brown and dark propolis from the Serra da Canastra region, Bambuí, Minas Gerais, the study seeks to contribute to the scientific knowledge of these natural products and their possible application in medicine and health and wellness products.…”

Assessing the Effectiveness of Chemical Marker Extraction from Amazonian Plant Cupuassu (Theobroma grandiflorum) by PSI-HRMS/MS and LC-HRMS/MS

“…Aiming to reduce the multistep, laborious, and high-solvent-consumption process usually involved in conventional MS methods, ambient mass spectrometry (AMS) techniques have been increasingly applied to the analysis of natural products [ 13 , 14 , 15 ]. Paper spray ionization (PSI) is one of the most used ambient ionization techniques in food chemistry and metabolite fingerprinting of fruits, as it provides reliable and rapid results at low cost [ 16 , 17 , 18 , 19 , 20 , 21 , 22 ].…”