This study from Norway centered around glucose control in the liver. The researchers studied the pathways of glucose uptake and described the enzymes used in the final steps of carbohydrate digestion as alpha-amylase and alpha glucosidase. Any chemical that inhibits these enzymes will slow glucose uptake in the liver and be a benefit to anyone dealing with type 2 diabetes. They studies a lot of berries (bilberry (Vaccinium myrtillus), blackberry (Rubus fruticosus), black chokeberry (Aronia melanocarpa), black currants (Ribes nigrum), bog whortleberry (Vaccinium uliginosum), cloudberry (Rubus chamaemorus), Crowberry (Empetrum nigrum), Elderberry (Sambucus nigra), Lingonberry (Vaccinium vitas-idaea), raspberry (Rubus idaeus), red currant (Ribes rubric), rowan berries (mountain ash, Sorbus aucuparia), and sea buckthorn (Hippophae (Elaeagnus) rhamnoides). The phenolic compounds in all the berries inhibited response the enzymes that promote glucose uptake. Some berries had other chemicals that actually promoted glucose uptake: mountain ash and bilberry being the highest. The berries with the most powerful inhibitors were crowberry, cloudberry, bog whortleberry (bog blueberry), and lingonberry with crowberry being ranked number 1!
Posted in Blueberries (Vaccinium), Chokeberry (Aronia), Cloudberries (Rubus chamaemorus), Crowberry (Empetrum nigrum), Currants (Ribes), Elderberry (Sambucus), Health, Lingonberry, Lowbush cranberry, Vaccinium vitis-idaea), Mountain Ash (Sorbus), Raspberries (Rubus idaeus), Sea Buckthorn (Hippophae)
This is an interesting research paper from the University of Turku, Finland, the Finnish Beekeepers Association and the Tallin University, Estonia. The researchers conducted sensory taste testing and completed chemical profiles of several Finnish honeys (buckwheat, cloudberry, lingonberry, white sweet clover, willow herb (fireweed) and mixed flower honeys (composed of flowering mustards, clover and raspberry, and a member of the genus, Vaccinium). They found a total of 73 compounds that contribute to the aroma of the honeys. They also tested flavor, smell, color and texture with a panel of 62 people. Buckwheat honey was described as malty with a cheese- and fecal-like and cow- and barn-like aroma. Some called it “earthy”! They found that cloudberry honey had the highest level of aromatic compounds of those tested. It was described as pungent, solvent-like, herbal and citrus-like. Lingonberry honey was described as pleasant and sweet with notes of vanilla and caramel. The others were rated well because they were most familiar to the panelists and their pleasant aromas. The honey samples that rated poorly because of strong, unfamiliar odor, flavor and aftertaste as well as dark color were buckwheat and cloudberry! Both were strongly negative in consumer appeal.
I have eaten buckwheat honey, and it is as strong and “earthy” as described, more like a molasses rather than honey, but still good especially for baking. To lump cloudberry in the category is amazing! I have never seen a beekeeper sell cloudberry honey – not enough flowers in one location, I suspect, but it doesn’t sound like anything I would invest in! Lingonberries and fireweed – yes!
Kortesniemi, M., Rosenvald, S., Laaksonen, O., Vanag, A., Ollikka, T., Vene, K., Yang, B., Sensory and chemical profiles of Finnish honeys of different botanical origins and consumer preferences, Food Chemistry (2017), doi: Honey article
This study explored the antimicrobial activity of the antioxidant phenolic compounds in lingonberry juice and two other fruits in spoiled fruit juice. They studied Asaia lannensis and Asaia bogorensis, two well known bacteria that are a significant contributor to the degradation of non-alcoholic fruit juices. These bacteria create biofilms that cause turbidity and adhesion of the juice on surfaces holding the juice. These biofilms, in turn, can cause illness in susceptible individuals. The bacteria are also becoming resistant to a lot of the chemical preservatives used now in juices. The authors found that lingonberry juice added to the product shows a 67% reduction in adhesions from the bacteria. We all knew lingonberries were great. The evidence keeps mounting!
Wild Fruits as Antiadhesive Agents Against the Beverage-Spoiling Bacteria Asaia spp.
Hubert Antolak, Agata Czyzowska , Marijana Saka , Aleksandra Mišan , Olivera uragi´c and Dorotea Kregiel Institute of Fermentation Technology and Microbiology, Lodz University of Technology, Wolczanska 171/173, 90-924 Lodz, Poland; email@example.com (A.C.); and Institute of Food Technology Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia;
Abstract: The aim of the study was to evaluate antioxidant activity and total phenolic content of juice from three different types of fruits: elderberry (Sambucus nigra), lingonberry (Vaccinium vitis-idaea) and cornelian cherry (Cornus mas), and their action against adhesion of bacterial strains of Asaia lannensis and Asaia bogorensis isolated from spoiled soft drinks. The antioxidant profiles were determined by total antioxidant capacity (2,2-diphenyl-1-picrylhydrazyl, DPPH), and ferric-reducing antioxidant power (FRAP). Additionally, total polyphenol content (TPC) was investigated. Chemical compositions of juices were tested using the chromatographic techniques: high-performance liquid chromatography (HPLC) and liquid chromatography–mass spectrometry (LC-MS). Adhesion properties of Asaia spp. cells to various abiotic materials were evaluated by luminometry, plate count and fluorescence microscopy. Antioxidant activity of fruit juices expressed as inhibitory concentration (IC50) ranged from 0.042 0.001 (cornelian cherry) to 0.021 0.001 g/mL (elderberry). TPC ranged from 8.02 0.027 (elderberry) to 2.33 0.013 mg/mL (cornelian cherry). Cyanidin-3-sambubioside-5-glucoside, cyanidin-3-glucoside, and cyanidin-3-sambubioside were detected as the major anthocyanins and caffeic, cinnamic, gallic, protocatechuic, and p-coumaric acids as the major phenolic acids. A significant linear correlation was noted between TPC and antioxidant capacity. In the presence of fruit juices a significant decrease of bacterial adhesion from 74% (elderberry) to 67% (lingonberry) was observed. The high phenolic content indicated that these content indicated that these compounds may contribute to the reduction of Asaia spp. adhesion.
Here is a thesis that explores climate change through berries near Kugluktuk, Nunavut, Canada. The program is part citizen science as well as documenting the ethnobotany of the region. It includes great summaries of the most important berries and even some recipes!
Posted in Bearberry (Arctostaphylos), Berry Harvesting, Blueberries (Vaccinium), Cloudberries (Rubus chamaemorus), Crowberry (Empetrum nigrum), Ecology, Ethnobotany, Foraging, Lingonberry, Lowbush cranberry, Vaccinium vitis-idaea), Recipes, Wild harvesting
This study from Romania/Hungary showed that lingonberries have a high anti-microbial activity especially relating to Pseudomonas species. The authors found that where you harvest makes a big difference in this anti-microbial activity. When selecting for high activity, the location needs to be considered. It is not known just what in the environment is influencing the activity, but it can be highly variable.
The idea of a plant being able to conduct photosynthesis during freezing temperatures was a novel idea to me. The researchers in this article wanted to see how lingonberries were able to recover to a photosynthetic state during periods of mild temperature during winter months. They tested temperature, photoperiod, and preceding frost for effects on the lingonberry, and what they discovered surprised me. Extreme cold slowed down the recovery, however the berries were able to come back and maintain photosynthesis even at freezing temperatures. These berries amaze me! The more I learn, the more I realize I don’t know. Check out their findings in the article listed below. CM Fairbanks
Saarinen, T., R. Lundell, and H. Hänninen. 2011. Recovery of photosynthetic capacity in Vaccinium vitis-idaea during mild spells in winter. Plant Ecol 212:1429-1440
Speaking of ways to use lingonberries without an overwhelming amount of sugar, I tried Kathy Gunst’s recipe, “Cranberry Sauce with Orange, Ginger, Pineapple and Pecans” last year for Thanksgiving. Thanksgiving isn’t too far away, but maybe I’ll make it even sooner just for the heck of it and because it’s so darn good.Kathy Gunst’s recipe combines ginger (fresh and crystalized), maple syrup, pineapple, pecans; orange juice, rind, and zest, and of course cranberries.. She suggests using it on turkey, but if you want to make it more than a once a year condiment, she suggests trying it with a cheese platter or with sweet potatoes as well.
You can find it here: Recipe
And next maybe I’ll try finding a good cranberry chutney recipe.
Gunst, K. 2011. From Notes from a Maine kitchen. Down East Books.