Vegetable Milk Research Articles

Evaluation of vegetable milk from milk blends of soybean (Glycine max.) and African breadfruit seeds (Treculia africana)

Breadfruit milk (BM) is an unpopular nutritive drink compared to soymilk and ia mostly consumed along with the seeds when boiled. Blending with soymilk will give a novel functional drink with enhanced nutritive value to prevent hidden hunger, enhance stability and may popularize the blend. Soymilk and BM from soaked and boiled dehulled African breadfruit were blended in 95:5%, 90:10% and 50:50% ratios, respectively, while 100% soymilk and 100% BM served as controls. Proximate, vitamin, mineral, anti-nutrient and physicochemical analyses were conducted on the milk blends using standard methods. Sensory properties were determined by subjective evaluation with semi-trained panellists. With increasing BM inclusion, proximate composition revealed increase in moisture content (93.60 to 94.05%) and carbohydrate (0.3 to 0.93%) while total solids (TS) (6.40 to 5.95%), ash (0.55 to 0.49%), fat (2.70 to1.85%) and protein (2.93 to 2.70%) decreased. Vitamin A (0.62 to 1.48 µg/100 mL) increased while vitamin B1 (0.12 to 0.08 mg/100 mL) and vitamin C (4.05 to 3.21 mg/100 mL) decreased. Calcium (0.59 to 0.53 mg/100 mL), phosphorus (8.05 to 7.33 mg/100 mL), zinc (0.75 to 0.63 mg/100 mL) and iron (0.59 to 0.54 mg/100 mL) decreased. Flavonoid (0.15 to 0.09 mg/100 mL), saponin (0.13 to 0.9 mg/100 mL), tannin (0.39 to o.29 mg/100 mL), phytate (0.23 to 0.17 mg/100 mL) and oxalate (0.27 to 0.19 mg/100 mL) decreased. Titratable acidity (TTA) (0.23 to 0.26) and visible coagulation time (VCT) (15 to 19 days) increased while pH (6.33 to 5.59), and viscosity (0.48 to 0.45 mPa) decreased. General acceptability (7.01 to 6.41) decreased. The nutrient contents of all the milk blends varied due to increasing concentration effects of the ash, but were acceptable to the panellists mostly at lower levels.

Multidisciplinary lifestyle modification program (IM-FIT) for cancer survivors: implementation of a reimbursable model in a cancer hospital.

We examined the initial effects of a real-world application of a multimodal, reimbursable program to improve lifestyle and promote healthy weight loss in cancer survivors as part of their care. The lifestyle program (Integrative Medicine Fitness Program; IM-FIT) focusing on increasing physical activity and strength training, improving nutrition, and facilitating stress management and behavior change was delivered in a group format over 12weeks. Patients met weekly with a physical therapist, dietitian, and psychologist. Body composition and behavioral data were collected at the start and end of 12weeks, as well as fitness, nutrition, and psychological data. The first cohort started in September 2017, and the last cohort ended in August 2019. Twenty-six patients (92% female; mean age = 62.7, SD = 9) completed the program, which was pre-approved and covered as in-network by their health insurance. Patients lost an average of 3.9% of their body weight (SD = - 2.2). There was a significant reduction in white bread and desserts and increase in legumes and non-dairy milk. Time spent in vigorous exercise (p < .001), strength training (p < .001), and total exercise (p < .001) significantly increased. Patients reported reduction in depression (7.76 to 4.29; p = .01), anxiety (6.14 to 3.29; p < .01), and overall distress (4.70 to 3.40; p < .01). We demonstrated that a multi-disciplinary weight loss program can be tailored to cancer survivors leading to weight reduction and improvements in lifestyle factors and mental health. This program showed successful real-world implementation with insurance reimbursement.

Validation of an analytical method based on QuEChERS and LC-MS/MS to quantify nine mycotoxins in plant-based milk

Plant-based beverages (popularly known as vegetable milk) have become increasingly important in recent years. However, the nonexistence of information on mycotoxin contamination is noticeable. We herein describe the development and validation of an analytical methodology that employs QuEChERS and LC-MS/MS for the simultaneous determination of nine mycotoxins (aflatoxins B1, B2, G1, and G2, fumonisins B1 and B2, ochratoxin A, zearalenone, and citreoviridin) in seven types of vegetable milk (peanut, oat, rice, cashew, maize, soybean, and coconut). The method provided the following quantification limits, recoveries at the lowest validated concentration and relative standard deviations under repeatability conditions at the lowest validated concentration, respectively: aflatoxin B1 (0.023 μg/l, 84.98 and 9.23%); aflatoxin B2 (0.024 μg/, 93.00 and 4.85%); aflatoxin G1 (0.057 μg/l, 98.85 and 5.53%); aflatoxin G2 (0.031 μg/l, 96.64 and 4.08%); fumonisin B1 (2.166 μg/l, 75.55 and 16.78%); fumonisin B2 (1.105 μg/l, 70.47 and 11.89%); ochratoxin A (0.104 μg/l, 72.05 and 5.12%); zearalenone (8.093 μg/l, 107.10 and 6.37%); citreoviridin (1.305 μg/l, 97.25 and 7.28%). The method uses small amounts of samples, solvents, and other inexpensive reagents with no need for laborious clean-up and pre-concentration steps. Its attractive characteristics (simplicity, low cost compared to procedures that use immunoaffinity columns, and full compatibility with routine analyses) make it potentially valuable. As a proof-of-principle, the validated methodology was applied to seven commercial samples of different compositions showing that some were contaminated with aflatoxins and ochratoxin A.

CHARACTERISATION OF LACTIC ACID BACTERIA ISOLATED FROM KEFIR MILK MADE FROM DAIRY AND NON-DAIRY SOURCES AND THEIR SENSORY ACCEPTANCE

Kefir is a fermented milk obtained by fermenting milk with kefir grains. The chemical composition of dairy and non-dairy sources may affect the growth and characterisation of lactic acid bacteria (LAB). In this study, different sources of milk (cow milk) and non-dairy milk (soymilk and coconut milk) were used as the fermentation media for kefir products. The objectives of the study were to isolate and characterise LAB from kefir drink produced from dairy and non-dairy milk. LAB was isolated using different cultural methods, such as MRS Agar, MRS with 0.8% CaCO3, and M17 Agar. The characteristics of the LAB isolates were determined using morphological, biochemical tests and the API 50 CHL kit. The physicochemical composition of the samples was determined using titratable acidity and pH level. Sensory evaluation of the kefir drink samples was also carried out. Results confirmed that the isolates were identified as Lactobacillus buchneri, Lactobacillus brevis 1, Leuconostoc mesenteroides, Lactobacillus acidophilus 3 and Lactobacillus plantarum 1. The L. buchneri, L. brevis, Leu. mesenteroides and L. acidophilus are heterofermentative bacteria, whereas L. plantarum is a homofermentative bacterium. Four LAB isolates have the potential to be used as probiotic strains due to their high resistant to low pH and bile salt. The sensory scores of these products range between 5.00 and 8.00 in the 9-point hedonic scale. Most of the sensory panelists preferred cow milk kefir (p &lt; 0.05) compared with coconut milk kefir and soy milk kefir during the sensory evaluation of all attributes. Meanwhile, the preference between coconut milk kefir and soy milk kefir was similar (p&gt;0.05) in all attributes. Therefore, this study will be useful for probiotic manufacturers in the production of alternative probiotic drinks using dairy and non-dairy milk.

Plant-Based Cheeses: A Systematic Review of Sensory Evaluation Studies and Strategies to Increase Consumer Acceptance

Animal protein provides unique sensory and textural properties to foods that are not easily replicated when replaced with plant-based alternatives. Food scientists and researchers are currently developing innovative approaches to improve their physical and sensory characteristics in plant-based analogs. In terms of plant-based cheese substitutes (PBCS), soy is the most commonly used plant-based protein but is associated with undesirable sensory attributes (i.e., beany and gritty). In order to determine if the approaches result in a significant improvement in sensory quality and liking, sensory evaluation is employed. The aim of this review is to summarize the original literature (n = 12) relating to 100% PBCS which utilizes sensory evaluation methods. Overall, a major theme identified in this review is the innovative strategies used to increase acceptance of PBCS, whether products are aimed at improving existing non-dairy-based cheese formulations or to more closely mimic a conventional dairy-based cheese product. Studies demonstrate processing and fermentation of soybeans and blending of non-dairy milks are potential ways to improve consumer liking of PBCS. A secondary focus is to discuss the current sensory methodology carried out in the reviewed literature. Future studies should consider using more specific measures of flavor and mouthfeel, integrate evaluation of consumer liking with instrumental textural methods, and use a larger more diverse group of consumers. The outcome of this review is to highlight the importance of integrating sensory science in order to help facilitate the improvement of the sensory and quality attributes of PBCS and streamline product development.

Family meal participation is associated with dietary intake among 12-month-olds in Southern Norway

BackgroundFamily meal participation is associated with healthier eating among children and adolescents. Less is known about family meal participation among infants and toddlers. The objective of the present study was to explore whether family meal participation at 12 months of age is associated with dietary intake and whether a potential relationship differs according to maternal education or child sex.MethodsFollow-up data from children born to mothers participating in the Norwegian Fit for Delivery (NFFD) trial during pregnancy were used to assess the frequency of intake of 11 dietary items according to frequency of participating in the respective family meals. Dietary differences according to seldom (0–3 times/week) or often (4–7 times/week) participating in each respective meal category were assessed in linear regression models. Potential dose-response associations with frequency of participation in all family meal categories combined were also estimated. Models were adjusted for maternal randomization status, education, and child sex.ResultsThe sample comprised 408 children. A total of 74, 53 and 74% had breakfast, lunch, and dinner with family ≥4 times/week, respectively, while 39% had supper and 27% between-meal snacks with family ≥4 times/week. Having family dinner ≥4 times/week was associated with more frequent intake of vegetables, homemade infant cereal, milk, and water, and less frequent intake of commercial infant foods while the other family meal categories were associated with fewer dietary outcomes. For each additional meal category eaten with family ≥4 times/week, frequency of vegetable intake (β = 0.45), water (β = 0.17), and milk (β = 0.09) per day increased, while commercial infant cereal was eaten less frequently (β = − 0.18). The inverse association between family meals and commercial infant cereal was only evident in children born to mothers in the intervention group. Several associations with diet were stronger and only significant among boys.ConclusionsBeing fed in the context of family meals at 12 months of age was associated with a more favorable diet. Including the infant in family meals has potential in the promotion of early nutritional health.

Development, quality assessment and antioxidant properties of cocoa based beverage produced from vegetable milk

Developing countries are faced with the challenge of diet related diseases like diabetes mellitus, cancer, cardiovascular diseases and inadequate protein in their diet. The common beverage produced from animal milk was reported to have bad cholesterol which may lead to hypertension, hence the need to develop beverage from plant sources. Cocoa based beverage was developed from of Tigernut tubers (Cyperus esculentus), Soybean (Glycine max) and Alkalized Cocoa Powder sweetened with either natural or synthetic sweeteners (Date syrup, Sucrose and Aspartame). A commercially available sample was used as control. Physicochemical, amino, fatty, antioxidant properties and sensory evaluation were carried out using standard methods. The protein content of the formulated beverage ranged from 3.12g/100g in TCSW to 9.58g/100g in TCS and were significantly higher (p&lt;0.05) than TSBD (2.12g/100g) which was the control sample ;while Energy values (Kcal) ranged from 84.529kcal/100g in SCS to 468.51kcal/100g in TCS. The total phenolic content ranged from 136.11mg/g in SCS to 161.37mg/g in TCDS but was slightly lower than TSBD (165.85mg/g). In conclusion, the study established that the formulated beverage exhibited high amino acid profile and low fatty acid composition; hence the beverage drink may be suitable as functional foods for both old and young.

Enriched confectionary dairy product

The article presents data on a developed recipe of a new vegetable milk product. A method of its production and its quality and chemical composition have been studied. Physical and chemical properties of the cakes and their biological value have been studied. Physicochemical properties and amino acid composition have been investigated. The nutritional value of the samples developed using vegetable oilcakes has been studied. So, in comparison with Control sample, Test samples were registered to have an increase in protein content by 3 and 3.4% and carbohydrates, including fiber, and a decrease in fat content by 7 and 8%, respectively. Moreover, alcoholic extract of beeswax being added in an amount of 0.5% has been revealed to increase the storage capacity of the confectionery spread samples developed. The data obtained showed that the method proposed allowed to obtain a confectionery spread with a high sensory qualities, improved nutritional value.

Evaluation of lablab bean (Lablab purpureus (L.) Sweet) sprout milk fortificated with eggshell extracted calcium

ABSTRACTLablab purpureus (L.) Sweet is a common bean in Asia. High protein content and similar amino acid composition with soybean makes good substitutes against dependency on imported products in Asian countries. One example of a bean product is vegetable milk. Fortification is executed to create a product, which compels our diet. Many people experience low protein and mineral intake from food. Fortification of plant origin products utilizing food waste by-products, namely eggshell waste by-product, may give an opportunity on this field. Milk created using beans is processed immediately. However, physiological process (germination) is capable of increasing its nutrition quality. This research focuses on variation of germination time: 0, 12, 24, 36, and 48 h. Protein digestibility is selected as the main parameter to consider the time. Protein, and mineral content, pH, and total soluble solid content of the milk are analyzed. Germination time of 36 h establishes sprout with digestible protein of 13.36 ± 0.59 g/100 g, milk protein content of 7.21 ± 0.06 g/100 g, pH of 6.74 ± 0.17, and total soluble solid content of 19.0 brix. The addition of eggshell extracted calcium as calcium fortification is 2% w/v, which resulted in mineral content of 276 ± 0.13 mg/100 g.

A Simple and Rapid Analytical Method for the Determination of Nutrient and Toxic Elements in Nut-Based Milk Alternative Beverages by ICP-OES

Plant-based drinks are non-dairy milk alternative beverages that are nowadays widely consumed across the world. Among them, nut-based milk alternative beverages such as almond drink, walnut drink, and peanut drink are gaining more and more popularity. This study presents the development and validation of an inductively coupled plasma–optical emission spectrometry (ICP-OES) method for the determination of nutrient and toxic metals elements in nut-based drinks. The determined metals were Ag, Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, In, Mg, Mn, Ni, Pb, and Zn. The mineralization process of drink samples was optimized in order to achieve complete dissolution. Under optimized conditions, mineralization of 2 g of the nut-based drinks was achieved by the addition of 3 mL of nitric acid and heating at 120°C for 60 min into Teflon autoclaves. The proposed method was validated in terms of linearity, accuracy, precision, limits of detection (LODs), and limits of quantification (LOQs). The relative standard deviations (RSD%) for all elements were 0.4–10.8%, and the relative recovery values (RR%) were 90.0–109.7%, demonstrating that the method offered good precision and accuracy. The LODs for the determined elements were found to be 0.03–1.08 mg kg−1, while the LOQs were found to be 0.10–3.23 mg kg−1. The developed method was successfully employed for the analysis of different commercial nut-based drinks (e.g., almond-based drinks, walnut-based drinks, peanut-based drinks etc.) obtained from the local market.

Effect of Consumption of Vegetable Milk from Mucuna Seeds on Some Serum Biochemical Profiles of Young Stressed Rats

Effect of Consumption of Vegetable Milk from Mucuna Seeds on Some Serum Biochemical Profiles of Young Stressed Rats

BRANDING AS AN EFFECTIVE MARKETING STRATEGY FOR THE COMPETITIVENESS OF THE DAIRY INDUSTRY

The purpose of the paper is to justify the theoretical concept, to identify the main trends and develop practical recommendations for the use of branding by dairy companies to increase their competitiveness. Methodology. To achieve results, it is necessary to develop the theoretical foundations of branding; to consider the current state and trends of the dairy market in Ukraine; to analyze the experience of other countries using branding; determine the role of branding in the marketing strategy of the dairy industry. Results. The article proves the growing role of branding in ensuring the competitiveness of enterprises. The content of the concept of brand and branding as a component of marketing activities is revealed. The expediency of forming a premium pricing strategy is justfied. Peculiarities of branding on the market of dairy products of Ukraine are highlighted. The main trends in the development of the range of dairy products are studied: healthy nutrition, growth of the “vegetable milk” sector and lactose-free products. The target segment of consumers and its features, the main stages of the advertising campaign in promoting dairy products on the market are determined. Practical implications. Creating new brands of dairy products and distributing them to the market through branding is an effective method of ensuring the competitiveness of dairy products, but Ukrainian producers do not know how to use it successfully. This is due to the fact that competition in the field of dairy products is very high, and therefore the use of various measures to improve product quality and price measures of competition are quite limited. Therefore, non-price factors of dairy product competitiveness and non-price factors of competition come to the fore. Branding helps to reduce the cost of services to promote dairy products on the market and increase the commercial effect. The subject of research is a set of theoretical, methodological aspects of the organization and application of branding dairy companies in order to increase their competitiveness. Branding as an effective tool of communication policy of enterprises will ensure and then increase the competitiveness of poultry products through its personalized positioning and promotion.

Characterisation of hydrolysate for identifying initial peptide cleavage site of κ-casein by milk coagulating Wrightia tinctoria serine proteases

Research on identifying vegetable milk coagulants has gained momentum in the past few decades. Extent of casein hydrolysis and specific initial hydrolytic site on κ-casein are considered crucial in deciding suitability of plant proteases for cheese making. In the present study, three phase partitioned (TPP) proteases (serine) of Wrightia tinctoria stem were assayed to understand their specific cleavage site on κ-casein. Time dependent analysis of κ-casein hydrolysis by W. tinctoria proteases revealed 2 min incubation to be enough for hydrolysis to begin. Molecular mass of the resulting major peptide was confirmed to be 14,542.52 Da and was further characterised using LC/ESI-MSMS. The initial site of hydrolysis by W. tinctoria proteases on κ-casein was Asn123–Thr124, which is different from the expected Phe105–Met106 of rennin. The study concludes that even with its unique initial site of κ-casein hydrolysis, W. tinctoria proteases could influence milk clotting probably with distinct organoleptic properties.

Yogurt Favorite Level Test Using Basic Ingredients Soybean Milk With Addition of Green Spinach (Amaranthus Tricolor L.)

Spinach is food that is easily wilted and easily damaged, so spinach that has been harvested must be immediately marketed and consumed. There are two methods to extend the shelf life of spinach, namely cooling and drying methods. This study uses the drying method. The advantages of drying compared to cooling are that the dried material is more durable, the volume and weight are reduced, resulting in lower costs for packaging, transportation and storage. Along with the development of food technology, vegetable milk began to be introduced as an alternative ingredient for making yogurt whose nutritional value is not inferior to animal milk yogurt. In order to be more attractive to increase income and add coloring, the natural coloring is green spinach, considering there has never been researched into making yogurt with the addition of green spinach as a natural coloring. The treatment of adding green spinach vegetable extracts by 15% and 25% affects the quality changes that occur in yogurt made from soy milk. By simply differentiating the addition of 15% and 25% can prove the influence of changes in yogurt quality made from soy milk.&#x0D; Keywords: Organoleptic Test, Yoghurt, Green Spinach, Soy Milk

Development of a functional product for the prevention of iodine deficiency

Iodine belongs to the most important elements that are responsible for the full working condition of the body. Iodine deficiency is a very acute problem, its elimination is an important task of the world communities, reflected in the Doctrine of Food security of the Russian Federation, regional target programs of Russia. In the modern world, the proposed measure for the prevention of iodine deficiency is the consumption of iodized salt and some foods containing an inorganic form of iodine, or the use of a variety of biologically active additives. However, according to the observed statistics of diseases that are associated with a lack of iodine, the presented measures are not very effective. The article presents studies of the process of bioconversion of inorganic iodine into organic – bioavailable, capable of reaching the target organ, for example, during the germination of lentil grains in the appropriate nutrient medium. The possibility of obtaining an organic form of iodine from sprouted lentils in an iodized medium with subsequent production of food products, such as vegetable milk, is proved. The organoleptic, physico-chemical parameters of the milk obtained, as well as vitamin and amino acid compositions that increase the nutritional and biological value of the product were studied, the safety indicators were analyzed and meet the requirements for use in food systems. In the course of the work carried out, we obtained a product with a balanced composition of nutrients for the human body. These developments open up prospects for the creation of functional products for functional purposes with a bioavailable form of iodine.

Plant-Based Milks: Cashew

The availability and consumption of plant-based milk alternatives have been on the rise. Sales of nondairy milk alternatives have more than doubled, whereas consumption of traditional cow's milk has dropped. This increase may be due to plant-based milks being perceived as "natural," as well as a rise in veganism and avoidance of lactose. The primary plant-based dairy alternatives are almond, soy, coconut, cashew and rice. This new 4-page publication of the UF/IFAS Food Science and Human Nutrition Department discusses the nutritional content, potential health benefits, and potential risks of cashew milk. Written by Jamie Zeldman, Daniela Rivero-Medoza, and Wendy J. Dahl.https://edis.ifas.ufl.edu/fs413

Plant-Based Milks: Coconut

Plant-based alternatives to cow's milk have become a rising trend. Factors that may steer consumers toward nondairy milk alternatives include adherence to a vegan diet, lactose intolerance, allergy to cow's milk, or simply preference. Coconut milk is one of the many varieties of plant-based milk. Whether you are considered switching to or have already begun purchasing a plant-based milk, the purpose of this new 4-page guide is to inform you on the nutrient content of coconut milk and its potential health benefits and risks. Written by Celia Andreo, Daniela Rivero-Mendoza, and Wendy J. Dahl, and published by the UF/IFAS Food Science and Human Nutrition Department.https://edis.ifas.ufl.edu/fs411

Vegetable-Milk-Based Yogurt-Like Structure: Rheological Properties Influenced by Gluten-Free Carob Seed Flour

There is a constant increase in the attention being paid to food quality and the effects of food on human health among consumers. Vegetable milk is among the foods whose consumption worldwide has increased because, when compared to animal-derived milk, it offers numerous benefits for human health. The aim of this research work was to use vegetable milk to obtain yogurt-like products enriched with different concentrations of carob seed flour, which has a double function: to modify, and thus perfect, the rheological characteristics of vegetable-milk-based yogurt-like samples and to increase their nutritional value. The rheological parameters of the obtained samples were studied both in static and dynamic conditions, confirming that carob seed flour, especially at the highest used concentrations (0.75%; 1%), allows one to obtain products characterized by a good stability and suitable rheological characteristics. The obtained yogurt-like products may also be consumed by celiac subjects, since carob seed flour is a gluten-free flour, and allow celiac consumers to combine a gluten-free diet with a diet free of animal derivatives. Furthermore, the addition of carob flour allows one to obtain a tasty product thanks to the sweet taste of the carob seed flour.

Innovation in Tigernut (Cyperus Esculentus L.) Milk Production: In Situ Hydrolysis of Starch.

Tigernut tubers (Cyperus esculentus) are used for the production of vegetable milk, commonly known as “Horchata de chufa” in Spain. The presence of starch in the tuber limits the yield of the milk, since this carbohydrate gelatinizes during the pasteurization of the milk and leads to the considerable solidification of this drink. The present work aims to improve the yields and extraction practice of the milk by an in situ hydrolysis of starch, using exogenous amylases of industrial or vegetable origin. The obtained results show that sprouting improves the extraction yields of tigernut milk, which goes from 50% to about 70%. This improvement in milk yield corresponds to a hydrolysis of about 35% of the starch in the tuber. The use of exogenous amylases leads to starch hydrolysis rates of 45% and 70%, respectively, for amylolytic extracts from sprouted tigernut tubers and amylase, with the corollary of a natural increase in the sweetness of milk. This technical approach makes it possible to produce a naturally sweetened tigernut milk which easily lends itself to pasteurization without a significant increase in viscosity.

Discrimination of bovine milk from non-dairy milk by lipids fingerprinting using routine matrix-assisted laser desorption ionization mass spectrometry

An important sustainable development goal for any country is to ensure food security by producing a sufficient and safe food supply. This is the case for bovine milk where addition of non-dairy milks such as vegetables (e.g., soya or coconut) has become a common source of adulteration and fraud. Conventionally, gas chromatography techniques are used to detect key lipids (e.g., triacylglycerols) has an effective read-out of assessing milks origins and to detect foreign milks in bovine milks. However, such approach requires several sample preparation steps and a dedicated laboratory environment, precluding a high throughput process. To cope with this need, here, we aimed to develop a novel and simple method without organic solvent extractions for the detection of bovine and non-dairy milks based on lipids fingerprint by routine MALDI-TOF mass spectrometry (MS). The optimized method relies on the simple dilution of milks in water followed by MALDI-TOF MS analyses in the positive linear ion mode and using a matrix consisting of a 9:1 mixture of 2,5-dihydroxybenzoic acid and 2-hydroxy-5-methoxybenzoic acid (super-DHB) solubilized at 10 mg/mL in 70% ethanol. This sensitive, inexpensive, and rapid method has potential for use in food authenticity applications.