Central Food Technological Research Institute

Central Food Technological Research Institute, New Delhi: ePrints@CFTRI
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    18062 research outputs found

    Microplastics in our diet: A review of food source contamination

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    Microplastics and Nanoplastics (MNPs) are particles arising from the intentional synthesis or unintentional degradation of plastic. They are widespread contaminants in diverse environments - from deep oceans to the human body. These particles could enter humans via inhalation, water, or food. Despite a decade of research on detecting MNPs in food, there is an incomplete understanding of the source of MNPs, their quantities and behaviour in food, and the total exposure to humans. This review examines studies on MNPs detected in foods (sans seafood), highlighting their presence in terrestrial and processed food sources. It elaborates on the diversity of data reported and its inconsistencies, challenges in the methodology, recent developments and progress, and key future directions. Detection of MNPs in critical routes is the first step in understanding the extent of MNP exposure and toxicity to humans. This is essential for developing effective interventions and food safety and health policies

    Nutritional characterization and discrimination of linseed varieties using multivariate statistical analysis

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    This study provides a comparative analysis of linseed varieties, specifically examining two high-yielding varieties (DLV6 and DLV7) alongside a local variety (BL) focusing on their nutritional attributes. DLV6 and DLV7 demonstrated superior physico-chemical properties and bioactive compounds, such as dietary fiber (34.59 % -40.61 %), secoisolariciresinol diglucoside (19.24–24.92 mg/g) and diverse phenolic compounds. Fatty acid compositional analyses revealed that DLV6 exhibited exceptional lipid health indices such as total unsaturated fatty acids (87.46 %), MUFA/PUFA ratio (0.38), PUFA/SFA (5.02), oleic desaturation ratio (0.43), atherogenicity index (0.14), thrombogenicity index (0.07), oxidability (12.38), hypocholesterolemic/hypercholesterolemic index (12.09) and peroxidisability index (113.62). To highlight differences in the nutritional composition of linseed varieties, multivariate statistical analyses including principal component analysis (PCA), hierarchical clustering and correlation analysis were carried out. PCA accounted for 100 % of the total variability, with two components explaining 64.23 % and 35.77 % variance, respectively. High yielding varieties were positioned at higher positive end and were distinct from the local variety. These analyses confirm that high yielding varieties outperformed the local variety in all nutritional metrics, underscoring their potential as nutrient-dense choices for balanced diets

    Solvent-free crystallization process for fractionating medium-chain triacylglycerols in virgin coconut oil and ghee

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    Medium chain triacylglycerols (MCTs) are valued for their health benefits due to their rapid metabolism and therapeutic potential. This study optimized a solvent-free crystallization process to enrich MCTs in the olein fractions of virgin coconut oil (VCO) and ghee. The effects of crystallization parameters, including mixing profile, cooling rate, crystallization temperature, and two-stage fractionation, were evaluated. Rotation during crystal- lization significantly enriched medium chain fatty acids (MCFAs) (63.97 ± 0.76 %) in VCO olein. A cooling rate of 0.10 ◦C/min enriched higher MCTs (13.92 %) and MCFAs (4.57 %). Optimal crystallization temperatures were found to be 15◦C for VCO and 25◦C for ghee. Two-stage crystallization further enhanced enrichment, increasing MCT content in VCO and ghee olein-olein fractions by 15.95 % and 23.61 %, respectively. Differential scanning calorimetry showed lower melting and crystallization temperatures for olein fractions, which were consistent with altered triacylglycerol profiles. Physicochemical properties (specific gravity, refractive index, and saponi- fication value) confirmed compositional modifications induced by fractionation. The findings highlighted solvent-free crystallization as a sustainable and efficient method for producing MCT-enriched lipids with broader applications in functional foods and nutraceuticals that require specific physicochemical properties. This research also provided a foundation for future research on scale-up of solvent-free fractionation across various edible oils and fats

    Ultrasonication as a tool for extraction of pomegranate juice and its colorant anthocyanins: Effects on quality parameters

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    Pomegranate juice combined with pulp was subjected to sonication under varying processing conditions. A ultrasonication of 20 kHz constant frequency, amplitude levels were ranging between 50 % and 100 %, pulse patterns of 5 s on/5 s off, 3 s on/3 s off, and 1 s on/1 s off, and sonication durations ranged from 0 to 10 min. The effect of ultrasonication on juice yield, anthocyanin content, color profile, browning index, and cloud value were evaluated. The ultrasonication intensity and time has a useful influence on extraction yield of juice and an- thocyanins for a limited time of 6 min. The juice yield was varied between 73.25 % and 75.90 %. The application of ultrasonication increase the extraction yield of bioactive compounds anthocyanin, which was varied in be- tween 117.86 and 135.16 mg L 1. The kinetics studies were performed for cloud value, browning index, color density, polymeric color, and color index. The results showed there were an increasing influence of ultrasonic intensity and time on color density, polymeric color, color index and browning index, and decreasing influence on cloud value. This study confirmed that ultrasonication can be employed as an extraction technique for fruit juices where anthocyanin and/or other nutritional compounds retention is desired

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