FOOD, FEED & BEVERAGES

Nut/Seed Roasting

Online near Infrared (NIR) spectroscopy

Online near Infrared (NIR) spectroscopy is a powerful analytical technique for assessing nut roasting quality in industrial environments. Its non-destructive nature, speed, and accuracy make it an invaluable tool for real-time quality data ensuring consistent roasting quality while reducing production costs and waste. Roasted nuts are often consumed directly or used in peanut butter, other nut butters, or confectionery items. The roasting quality is often subjective and controlled primarily by experienced technicians and their sight and smell. Online NIR provides analytical process control to improve roasting consistency.

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tec5USA's Distance Measurement Head

tec5USA’s Distance Measurement Head NIR system is easily integrated into existing production lines to measure moisture, oil, colour, and protein in roasted nuts. The robust hardware is mounted 6-20” above roasted nuts on conveyor belts and designed for process measurements with data output in milliseconds.

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Real-time monitoring and rapid feedback

Through real-time monitoring and rapid feedback, NIR spectroscopy allows manufacturers to maintain high quality standards and enhance consumer satisfaction by automating heat input into roasters. This scientific process control optimizes product moisture to meet the desired shelf-life, texture, and flavor. NIR spectroscopy allows for continuous monitoring and control of nut quality during the roasting process, reducing the risk of over-roasting or under-roasting. By adopting tec5USA’s online NIR system, companies can roast their way to greater efficiency, consistency, and consumer delight.

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Tailored calibrations

The calibration from the Application includes dry roasted and oil roasted peanuts, almonds, cashews, macadamias, pistachios, and hazelnuts. Some samples of pumpkin seeds and sunflower seeds are included as well. Tailored calibrations can be generated for your product to maximize correlation and accuracy. The development of calibration models and the use of data preprocessing techniques are essential steps in implementing NIR spectroscopy for nut roasting quality assessment. Partial least squares (PLS) is a statistical method used to process data and correlate the wet chemistry/ laboratory moisture data to the predicted spectral moisture values.

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    FAQ

    Frequently Asked Questions at tec5USA

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    Raman spectroscopy is a technique which is used for several markets. These industries include Oil and Gas, Pharmacology, Biotechnology, Petrochemistry and many others. Due to the high selectivity of Raman spectroscopy, it is a powerful tool for many applications including, hydrocarbon analysis, bioreactor protein monitoring, crystallization monitoring, API concentration, polymer identification, surfactant analysis, natural gas components and several others....

    Typical applications include white light interference for thin film analysis, UV absorption of proteins for quantitative analysis, colorimetry, impurity detection in water, cleaning validation for API manufacturing, polymerization inhibitor monitoring, electroplating bath monitoring....

    NIR spectroscopy is utilized across a variety of industries for qualitative and quantitative product analysis. Typical industries include Chemistry, Pharmacology, Food Feed & Beverage, Agriculture, and others. NIR spectroscopy is well suited for species containing C-H, N-H & O-H bonds, making it a wide-range technology for a variety of applications such as moisture, fat, oil, alcohol, APIs, polymers, etc....

    Spectroscopy is the study of the interaction of light with matter. Light covers a broad range of the electromagnetic spectrum from high energy ultra violet (UV) photons to the near infrared (NIR), with the visible spectrum that we can see being in between. These different portions of the spectrum are important because they interact with matter in different ways. In the UV, these photons have high energy and therefore can induce electronic transitions, while the NIR photons can cause molecules to vibrate at unique frequencies. The way that we measure where compounds absorb light is by taking a spectrum, which is a graph showing the transmission of light as a function of the wavelength. All compounds have a unique absorption spectrum which can be used to identify the chemical composition of samples....

    The spectroscopic methodology is determined by which parameters are important to monitor during a process. For example, if you want to monitor protein concentration in a bioreactor, in which the biosynthesis takes place in an aqueous medium, then you likely would want to use Raman spectroscopy for the application, as water does not contribute to the Raman signal. Alternatively, if moisture content is important, water has very strong absorption in the NIR due to several vibrational and combination modes that can be monitored; water is transparent in the UV and visible spectral region. Understanding which chemical is important as there could be various factors that influence the choice of methodology....

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