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Frequencies (%) of positive ( Yes) and negative ( No) answers collected for blind and informed samples of six different mussels. *Significant differences (p ≤ 0.05).
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This study aimed to explore the possibility of using Near-infrared spectroscopy (NIRS) for the authentication of mussels from six different geographical areas (Campania (South-Italy), Marche (Central-Italy), Veneto (North-Italy), Greece, Ireland and Spain). Secondly, the influence of mussels origin information on liking and willingness to buy was i...
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Mussel farming is an emerging activity on the Basque coast. The experiences of mussel (Mytilus
spp.) culture carried out in longlines in the coastal zone of Mendexa, between Ondarroa and Lekeitio
(Southeastern Bay of Biscay), have been promising. However, some basic aspects of the biology of mussels
cultured in offshore conditions are not yet well...
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... Significant absorption peaks in the 5300~5000 cm −1 region are associated with multiplicative absorption of N-H, C-H, O-H, and C=O bonds, mainly present in compounds, such as vitamin C, flavonoids, sugars, and proteins [25]. The absorption peaks at 5000~4500 cm −1 are related to the stretching vibration of C-H and C=O bonds and may be the absorption peaks of flavonoids [26]. The absorption peaks at 4400~4200 cm −1 are related to the stretching vibration of the C-H bond and the deformation vibration of -CH2, which may be the absorption peaks of polysaccharides and saponins [27]. ...
This study developed a rapid, non-destructive method combining near-infrared (NIR) spectroscopy with chemometric techniques (OPLS-DA, ANN, and PLS) to accurately identify the geographic origin and quantify six key chemical components of V. thibetica rhizomes. The results demonstrated that the combination of NIR spectroscopy, OPLS-DA, and ANN successfully and accurately distinguished V. thibetica from three distinct origins. Additionally, combining partial least squares (PLS) and NIR spectroscopy, the contents of chlorogenic acid, isochlorogenic acid A, isochlorogenic acid C, umbelliferone (7-hydroxycoumarin), senkyunolide I, and ligustilide measured by HPLC-UV were used as reference values to predict the contents of the six chemical components in V. thibetica, and spectral preprocessing methods optimized the model. The correlation coefficients of the final quantitative model for the contents of the six components in V. thibetica were between 0.7852 and 0.9538, the root mean square error of calibration (RMSEC) was between 0.0027 and 0.2530, and the root mean square error of prediction (RMSEP) was between 0.0031 and 0.4240. The results suggest that NIR spectroscopy combined with OPLS-DA and ANN can be used as a rapid and accurate method to evaluate the quality of V. thibetica herbs.
... Mussel (Mytilus galloprovincialis) consumption has increased at a high rate in the last 20 years due to the increase in the world population, the need for alternative protein sources and the proof of the essential components found in seafood with the literature. With an annual production volume of nearly 20 million tons [1], mussels are also important as a cheap and sustainable source of long-chain fatty acids. The high protein level [2], the excess of beneficial components, mainly selenium [3], and studies on its aphrodisiac effect [4] have turned mussels into an important fast food product, especially in Mediterranean countries. ...
In this study, the performance of a pre-designed and low-cost Arduino electronic nose for determining the quality of stuffed mussels was analyzed. In addition, 1000 images were taken on each storage day in order to determine the quality levels of stuffed mussel groups with open and closed shells by machine learning. Freshness limit values of stuffed mussels were determined as 200 for MQ3 and MQ135 sensors and 100 for MQ9 on the 3rd storage day when the total viable count (TVC) value exceeded 3 log CFU/g. In the study, faster neural networks with lower prediction times, such as SqueezeNet and GoogLeNet, were compared with ResNet-50, ResNet-101 and DenseNet-201 neural networks, which have larger prediction times but better accuracy. Study data showed that residual network (ResNet) 50 and Teachable Machine (TM) had high success in determining the quality levels of stuffed mussels.
... The results shown here are in line with previous studies. The NIRS successfully discriminated Mytilus galloprovincialis Lamarck, 1819 from six different European areas (Puleo et al., 2022). Fuentes et al. (2009) Principal Component Analysis of the Perna perna mussels collected from Jurujuba and Vermelha beaches. ...
Perna perna (Linnaeus, 1758) is one of the most commercialized mollusk species in Brazil. The individuals with a shell length of at least 50 mm are considered to be adults and suitable for commercialization and human consumption. However, the lack of control over the size of extracted mussels is a recurrent and worrisome issue, which may compromise the long-term survival of natural stocks. The present study evaluated the potential to differentiate juvenile brown mussels from adult individuals by using Near Infrared Spectroscopy (NIRS). A total of 176 mussels were obtained from Jurujuba and Vermelha beaches, both located in Guanabara Bay, in the state of Rio de Janeiro, Brazil. Spectra were obtained from the muscle group and a specific part of the shell, with the specimens being separated by size (shell length < 50 mm or > 50 mm), following the current Brazilian legislation. The classification of the muscles by mussel size obtained a hit rate of 66.03%, while the hit rate of the shells was 78%. The two groups were also distinguished efficiently when the two localities were analyzed separately. The results reflect the influence of environmental factors on the chemical composition of the P. perna adults from different areas, with a 85.71% hit rate. The results indicate that NIRS is a potentially effective diagnostic tool for the monitoring and management of the commercial exploitation of natural P. perna stocks.
... Recently, near-infrared spectroscopy (NIRS) coupled with multivariate statistical analysis has been widely used to trace the origins of foods and herbs (Puleo et al., 2022;Zheng et al., 2022) and determine starch, fat, protein, and saponin contents in crops, such as rice and soybeans, for quality control (Bagchi et al., 2016;Berhow et al., 2020;Shi et al., 2022). Owing to its rapid and non-destructive sampling, simple operation, good stability, and high efficiency, NIRS has advanced in qualitative identification and quantitative analysis in the field of food and medicine, thus showing the broad application prospects of NIRS (Nagy et al., 2022;Nobari Moghaddam et al., 2022). ...
Polygonatum species have great potential in fighting chronic and hidden hunger. In this study, five Polygonatum species collected from different populations were cultivated in a common garden for 4 years. The species mainly differed in yield, saponin and polysaccharide contents, stem diameter, leaf width, inflorescence length, and floret inflorescence length. P. cyrtonema (PC) provides high-quality yield when planted in Zhejiang, with output as high as 7.5 tons per hectare and a promising breeding potential. Moreover, stem diameter can be used as an indicator of the harvest in the screening of varieties. In addition, the formation of plant genetic traits from different provenances is affected by the climatic factors of the origin. Furthermore, near-infrared spectroscopy combined with chemometrics for polysaccharide and saponin quantitation provides a rapid assessment of PC quality. Our findings provide a scientific basis for the development and sustainable utilization of PC as a high-yielding and high-quality forest crop.
