One of the key challenges for the almond industry is how to detect the presence of bitter almonds in commercial batches of sweet almonds. The main aim of this research is to assess the potential of near-infrared spectroscopy (NIRS) by means of using portable instruments in the industry to detect batches of sweet almonds which have been adulterated with bitter almonds. To achieve this, sweet almonds and non-sweet almonds (bitter almonds and mixtures of sweet almonds with different percentages (from 5% to 20%) of bitter almonds) were analysed using a new generation of portable spectrophotometers. Three strategies (only bitter almonds, bitter almonds and mixtures, and only mixtures) were used to optimise the construction of the non-sweet almond training set. Models developed using partial least squares-discriminant analysis (PLS-DA) correctly classified 86-100% of samples, depending on the instrument used and the strategy followed for constructing the non-sweet almond training set. These results confirm that NIR spectroscopy provides a reliable, accurate method for detecting the presence of bitter almonds in batches of sweet almonds, with up to 5% adulteration levels (lower levels should be tested in future studies), and that this technology can be readily used at the main steps of the production chain.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8229702 | PMC |
| http://dx.doi.org/10.3390/foods10061221 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effectiveness of different gums on modulating of glycemic indices in adults: a systematic review and meta-analysis.
J Diabetes Metab Disord
June 2025
Student Research Committee, Department of Food Science and Technology, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran.
Background: Functional foods have been widely used as the anti-diabetic agents worldwide. Existing studies presented conflicting results of anti-hyperglycemic properties of gums. This systematic review and meta-analysis study evaluated the existing trials and determined the efficacy of different gums on glycemic indices.
View Article and Find Full Text PDFFrom spectroscopic data variability to optimal preprocessing: leveraging multivariate error in almond powder adulteration of different grain size.
Anal Bioanal Chem
December 2024
Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Carrer Marcel·lí Domingo 1, 43007, Tarragona, Spain.
Analysing samples in their original form is increasingly crucial in analytical chemistry due to the need for efficient and sustainable practices. Analytical chemists face the dual challenge of achieving accuracy while detecting minute analyte quantities in complex matrices, often requiring sample pretreatment. This necessitates the use of advanced techniques with low detection limits, but the emphasis on sensitivity can conflict with efforts to simplify procedures and reduce solvent use.
View Article and Find Full Text PDFObservation of the distribution of macro-, micro-, and toxic element contents of almond kernels burned with different digestion methods.
Environ Monit Assess
December 2024
Department of Plant Sciences, North Dakota State University, Fargo, 58108 ND, USA.
In this study, the elemental contents of almonds burned with four different methods to capture the elemental amount of almond kernels in the best way, to increase the release of obtainable elements by decomposing plant tissues, and to make them more atomized were measured and compared with ICP-AES. Depending on the digestion types, the K and Ca contents of almond varieties were determined as 10,167.35 (microwave) and 13,004.
View Article and Find Full Text PDFAptasensor based on entropy-driven catalytic amplification system for the sensitive detection of acetamiprid in Chinese herbal medicine.
Anal Methods
January 2025
College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300384, China.
The traditional method of acetamiprid residue detection is difficult to operate, time-consuming, laborious and requires high professional knowledge of the detection personnel, which cannot meet the requirement of on-field rapid detection. For this reason, a colorimetric aptasensor based on an entropy-catalyzed amplification system was developed for the ultrasensitive and selective determination of acetamiprid. In the absence of acetamiprid, the aptamer and cDNA form a double-stranded structure.
View Article and Find Full Text PDFAmygdalin alleviates LPS-induced acute lung injury in mice by targeting CD5L/iNOS pathway.
Mol Immunol
December 2024
College of Pharmacy, Key Laboratory of Ningxia Minority Medicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia 750004, China; Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia 750004, China; Ningxia Regional Characteristic Traditional Chinese Medicine Collaborative Innovation Center Co-constructed by the Province and Ministry, Ningxia Engineering and Technology Research Center for Modernization of Regional Characteristic Traditional Chinese Medicine, Ningxia Medical University, Yinchuan 750004, China. Electronic address:
Amygdalins (AMY) from bitter almonds are distinguished by their anti-inflammatory, antibacterial and antioxidant properties, but their role in the treatment of acute lung injury (ALI) and their mechanisms need to be clarified. We sought to investigate whether AMY provides protection against lipopolysaccharide (LPS)-induced ALI in mice and explore the mechanisms of its protection. Results showed that AMY effectively alleviated LPS-induced ALI in a dose-dependent manner by reducing in vivo lung wet/dry ratio, lung/body weight ratio, and myeloperoxidase (MPO).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!