{"title":"Ultrasound-assisted extraction, optimization, characteristics and antioxidant activity of Piper nigrum L. polysaccharides","authors":"Laiqing Deng, Gangliang Huang","doi":"10.1016/j.ultsonch.2025.107309","DOIUrl":null,"url":null,"abstract":"<div><div>The process conditions, content of ingredients and <em>in vitro</em> antioxidant activity of <em>Piper nigrum</em> L. polysaccharides (PNP) by ultrasound-assisted extraction (UAE) and PNP by hot water extraction (HWE) were compared. The findings demonstrated that the UAE produced greater polysaccharides content (74.41 %) with the yield of PNP (2.9 %) than HWE. The ideal conditions were 324 W of ultrasonic power, 36 mL/g of liquid to material ratio, 70 min of ultrasonic time, and 78 °C of temperature. Structural analysis showed UAE-PNP was the α-type polysaccharides with a pyran ring structure, which were mainly neutral polysaccharides. In addition, UAE-PNP had great antioxidant activity, especially in its ability to scavenge ABTS free radicals. According to the experimental results, the UAE method was an efficient way to extract PNP. This experiment showed for the first time the structure and antioxidant activity of HWE-PNP and UAE-PNP, which provided some theoretical proof for the application of PNP in food additives and biopharmaceuticals.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"116 ","pages":"Article 107309"},"PeriodicalIF":8.7000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ultrasonics Sonochemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350417725000884","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}
引用次数: 0
Abstract
The process conditions, content of ingredients and in vitro antioxidant activity of Piper nigrum L. polysaccharides (PNP) by ultrasound-assisted extraction (UAE) and PNP by hot water extraction (HWE) were compared. The findings demonstrated that the UAE produced greater polysaccharides content (74.41 %) with the yield of PNP (2.9 %) than HWE. The ideal conditions were 324 W of ultrasonic power, 36 mL/g of liquid to material ratio, 70 min of ultrasonic time, and 78 °C of temperature. Structural analysis showed UAE-PNP was the α-type polysaccharides with a pyran ring structure, which were mainly neutral polysaccharides. In addition, UAE-PNP had great antioxidant activity, especially in its ability to scavenge ABTS free radicals. According to the experimental results, the UAE method was an efficient way to extract PNP. This experiment showed for the first time the structure and antioxidant activity of HWE-PNP and UAE-PNP, which provided some theoretical proof for the application of PNP in food additives and biopharmaceuticals.
期刊介绍:
Ultrasonics Sonochemistry stands as a premier international journal dedicated to the publication of high-quality research articles primarily focusing on chemical reactions and reactors induced by ultrasonic waves, known as sonochemistry. Beyond chemical reactions, the journal also welcomes contributions related to cavitation-induced events and processing, including sonoluminescence, and the transformation of materials on chemical, physical, and biological levels.
Since its inception in 1994, Ultrasonics Sonochemistry has consistently maintained a top ranking in the "Acoustics" category, reflecting its esteemed reputation in the field. The journal publishes exceptional papers covering various areas of ultrasonics and sonochemistry. Its contributions are highly regarded by both academia and industry stakeholders, demonstrating its relevance and impact in advancing research and innovation.