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Vegetable: the story on HearLore | HearLore
Vegetable
In the year 1893, the United States Supreme Court made a ruling that would forever change how Americans viewed the humble tomato, deciding that for tax purposes, it was a vegetable rather than a fruit. This legal battle, known as Nix v. Hedden, arose from the Tariff of 1883, which imposed duties on imported vegetables but not on fruits. The court acknowledged the botanical truth that tomatoes develop from the ovary of a flower and are therefore fruits, yet they ruled that in common language and culinary usage, they were vegetables. This decision was not merely a legal technicality but a reflection of how deeply cultural definitions can override scientific facts. The justices recognized that while botanists might argue otherwise, the public and the government treated tomatoes as vegetables, and the law followed that practical reality. This case remains a fascinating example of how language, culture, and law intersect in unexpected ways, proving that a tomato is not just a fruit in disguise but a symbol of the complex relationship between human perception and botanical science.
From Wild Foraging to Global Trade
Before the advent of agriculture, humans were hunter-gatherers who foraged for edible plants, including fruits, nuts, stems, leaves, corms, and tubers, while hunting animals for food. The transition to agriculture began around 10,000 BC to 7,000 BC, with the first evidence of domestication found in the Fertile Crescent, where grasses like wheat and barley were cultivated. However, it is likely that various peoples around the world started growing crops during this period, developing subsistence agriculture that continues to this day in rural areas of Africa, Asia, and South America. The rich have historically been able to afford a varied diet including meat, vegetables, and fruit, while the poor relied on staple products like rice, rye, barley, wheat, millet, or maize, with vegetable matter providing necessary variety. The Aztecs in Central America cultivated tomatoes, avocados, beans, peppers, pumpkins, squashes, peanuts, and amaranth seeds to supplement their maize-based diet, while the Incas in Peru subsisted on maize in the lowlands and potatoes at higher altitudes, supplementing their diet with quinoa seeds, peppers, tomatoes, and avocados. In ancient China, rice was the staple crop in the south and wheat in the north, accompanied by vegetables like yams, soybeans, broad beans, turnips, spring onions, and garlic. The ancient Egyptians' diet was based on bread, often contaminated with sand which wore away their teeth, and included fish, marrows, broad beans, lentils, onions, leeks, garlic, radishes, and lettuces. The ancient Greeks' mainstay was bread, accompanied by goat's cheese, olives, figs, fish, and occasionally meat, with vegetables like onions, garlic, cabbages, melons, and lentils. In ancient Rome, a thick porridge made of emmer wheat or beans was accompanied by green vegetables but little meat, and fish was not esteemed, with Romans growing broad beans, peas, onions, and turnips and eating the leaves of beets rather than their roots.
What did the United States Supreme Court rule about the tomato in 1893?
The United States Supreme Court ruled in 1893 that the tomato is a vegetable for tax purposes under the Tariff of 1883. This decision in the case Nix v. Hedden classified the tomato as a vegetable despite acknowledging its botanical status as a fruit. The court based this ruling on common language and culinary usage rather than scientific classification.
When did the transition to agriculture begin and where was the first evidence found?
The transition to agriculture began around the 10th millennium BC to the 7th millennium BC. The first evidence of domestication was found in the Fertile Crescent where grasses like wheat and barley were cultivated. Various peoples around the world started growing crops during this period to develop subsistence agriculture.
Why are tomatoes botanically considered fruits but legally classified as vegetables?
Tomatoes are botanically considered fruits because they develop from the ovary of a flower. They are legally classified as vegetables based on common language and culinary usage rather than plant structure. This distinction creates a paradox where items like tomatoes, cucumbers, and squash are vegetables in common definition but botanically fruits.
What health benefits do vegetables provide and what toxins might they contain?
Vegetables provide dietary fiber, essential vitamins, minerals, and trace elements while being mostly low in fat and calories. They supply antioxidant vitamins A, C, and E which reduce the risk of cancer, stroke, and cardiovascular disease. However, some vegetables contain toxins such as alpha-solanine, cyanide, and oxalic acid that can interfere with nutrient absorption.
Which country was the largest vegetable producing nation in 2010 and what were the top yields?
China was the largest vegetable producing nation in 2010 with over half the world's production. The highest average yields were obtained in Spain and the Republic of Korea. India, the United States, Turkey, Iran, and Egypt followed China in total production volume.
The exact definition of a vegetable varies because of the many parts of a plant consumed as food worldwide, including roots, stems, leaves, flowers, fruits, and seeds. The broadest definition is the word's use adjectivally to mean matter of plant origin, while a more precise definition is any plant part consumed for food that is not a fruit or seed, but including mature fruits that are eaten as part of a main meal. This creates a paradox where items like eggplants, bell peppers, and tomatoes are vegetables in the common definition but botanically fruits, as they develop from the ovary of a flowering plant. While peaches, plums, and oranges are fruits in both senses, many items that are vegetables in the common definition are botanically fruits. This distinction is not merely academic but has real-world implications, as seen in the 1893 Supreme Court case. The question of whether the tomato is a fruit or a vegetable found its way into the United States Supreme Court, which ruled unanimously that a tomato is correctly identified as, and thus taxed as, a vegetable, for the purposes of the Tariff of 1883 on imported produce. However, the court acknowledged that, botanically speaking, a tomato is a fruit. This paradox extends to other vegetables, such as cucumbers, which are botanically fruits, and squash, which are also botanically fruits. The confusion arises because the culinary definition of vegetable is based on taste and usage, while the botanical definition is based on plant structure and development. This has led to a situation where some vegetables are actually fruits, and some fruits are actually vegetables, depending on the context in which they are used.
Nutrition and the Hidden Toxins
Vegetables play an important role in human nutrition, being mostly low in fat and calories but bulky and filling, supplying dietary fiber and essential vitamins, minerals, and trace elements. Particularly important are the antioxidant vitamins A, C, and E, and when vegetables are included in the diet, there is found to be a reduction in the incidence of cancer, stroke, cardiovascular disease, and other chronic ailments. Research has shown that, compared with individuals who eat less than three servings of fruits and vegetables each day, those that eat more than five servings have an approximately twenty percent lower risk of developing coronary heart disease or stroke. However, vegetables often also contain toxins and antinutrients which interfere with the absorption of nutrients, including α-solanine, α-chaconine, enzyme inhibitors, cyanide and cyanide precursors, oxalic acid, tannins, and others. These toxins are natural defenses used to ward off insects, predators, and fungi that might attack the plant. Some beans contain phytohaemagglutinin, and cassava roots contain cyanogenic glycoside as do bamboo shoots. These toxins can be deactivated by adequate cooking, and green potatoes contain glycoalkaloids and should be avoided. Fruit and vegetables, particularly leafy vegetables, have been implicated in nearly half the gastrointestinal infections caused by norovirus in the United States, as these foods are commonly eaten raw and may become contaminated during their preparation by an infected food handler. Hygiene is important when handling foods to be eaten raw, and such products need to be properly cleaned, handled, and stored to limit contamination. The consumption of crunchy and hard to chew foods, such as raw vegetables, during youth, while the bones are still growing, is needed for the human's, and other animals', jaws' proper development, and without their consumption, the jaws do not grow to their full size, thus not leaving enough room for the teeth to grow in correctly, causing crooked and impacted teeth.
The Science of Storage and Preservation
All vegetables benefit from proper post-harvest care, but a large proportion of vegetables and perishable foods are lost after harvest during the storage period, with losses as high as thirty to fifty percent in developing countries where adequate cold storage facilities are not available. The main causes of loss include spoilage caused by moisture, moulds, micro-organisms, and vermin. Storage can be short-term or long-term, with most vegetables being perishable and short-term storage for a few days providing flexibility in marketing. During storage, leafy vegetables lose moisture, and the vitamin C in them degrades rapidly. A few products such as potatoes and onions have better keeping qualities and can be sold when higher prices may be available, and by extending the marketing season, a greater total volume of crop can be sold. If refrigerated storage is not available, the priority for most crops is to store high-quality produce, to maintain a high humidity level, and to keep the produce in the shade. Proper post-harvest storage aimed at extending and ensuring shelf life is best effected by efficient cold chain application, with temperature-controlling technologies that do not require the use of electricity such as evaporative cooling. Storage of fruit and vegetables in controlled atmospheres with high levels of carbon dioxide or high oxygen levels can inhibit microbial growth and extend storage life. The irradiation of vegetables and other agricultural produce by ionizing radiation can be used to preserve it from both microbial infection and insect damage, as well as from physical deterioration, extending the storage life of food without noticeably changing its properties. Canning is a process during which the enzymes in vegetables are deactivated and the micro-organisms present killed by heat, with the sealed can excluding air from the foodstuff to prevent subsequent deterioration. Freezing vegetables and maintaining their temperature at below -18 degrees Celsius will prevent their spoilage for a short period, whereas a temperature of -40 degrees Celsius is required for longer-term storage. The enzyme action will merely be inhibited, and blanching of suitably sized prepared vegetables before freezing mitigates this and prevents off-flavors developing. Traditionally, sun drying has been used for some products such as tomatoes, mushrooms, and beans, spreading the produce on racks and turning the crop at intervals, though this method suffers from several disadvantages including lack of control over drying rates, spoilage when drying is slow, contamination by dirt, wetting by rain, and attack by rodents, birds, and insects. High levels of both sugar and salt can preserve food by preventing micro-organisms from growing, and vinegar is widely used in food preservation, with a sufficient concentration of acetic acid preventing the development of destructive micro-organisms, a fact made use of in the preparation of pickles, chutneys and relishes. Fermentation is another method of preserving vegetables for later use, with sauerkraut made from chopped cabbage relying on lactic acid bacteria which produce compounds that are inhibitory to the growth of other micro-organisms.
The Global Vegetable Economy
In 2010, China was the largest vegetable producing nation, with over half the world's production, followed by India, the United States, Turkey, Iran, and Egypt. China had the highest area of land devoted to vegetable production, while the highest average yields were obtained in Spain and the Republic of Korea. The scale of production varies from subsistence farmers supplying the needs of their family for food, to agribusinesses with vast acreages of single-product crops. Depending on the type of vegetable concerned, harvesting the crop is followed by grading, storing, processing, and marketing. Different soil types suit different crops, but in general in temperate climates, sandy soils dry out fast but warm up quickly in the spring and are suitable for early crops, while heavy clays retain moisture better and are more suitable for late season crops. The growing season can be lengthened by the use of fleece, cloches, plastic mulch, polytunnels, and greenhouses. In hotter regions, the production of vegetables is constrained by the climate, especially the pattern of rainfall, while in temperate zones, it is constrained by the temperature and day length. On a domestic scale, the spade, fork, and hoe are the tools of choice, while on commercial farms a range of mechanical equipment is available, including tractors, ploughs, harrows, drills, transplanters, cultivators, irrigation equipment, and harvesters. New techniques are changing the cultivation procedures involved in growing vegetables with computer monitoring systems, GPS locators, and self-steer programs for driverless machines giving economic benefits. When a vegetable is harvested, it is cut off from its source of water and nourishment, continuing to transpire and lose moisture as it does so, a process most noticeable in the wilting of green leafy crops. Harvesting root vegetables when they are fully mature improves their storage life, but alternatively, these root crops can be left in the ground and harvested over an extended period. The harvesting process should seek to minimise damage and bruising to the crop, with onions and garlic dried for a few days in the field and root crops such as potatoes benefiting from a short maturation period in warm, moist surroundings, during which time wounds heal and the skin thickens up and hardens. Before marketing or storage, grading needs to be done to remove damaged goods and select produce according to its quality, size, ripeness, and color.