Proven is a type of street food

Street food

Street food is ready-to-eat food or drink sold in a street or other public place, such as a market or fair, by a hawker or vendor, often from a portable stall. While some street foods are regional, many are not, having spread beyond their region of origin. Most street food are both finger and fast...

 popular in some regions of the Philippines

Philippines

The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

. It consists essentially of the proventriculus

Proventriculus

The proventriculus is part of the digestive system of birds, invertebrates and insects.-Birds:The proventriculus is a standard part of avian anatomy...

 of a chicken

Chicken

The chicken is a domesticated fowl, a subspecies of the Red Junglefowl. As one of the most common and widespread domestic animals, and with a population of more than 24 billion in 2003, there are more chickens in the world than any other species of bird...

, dipped in cornstarch

Cornstarch

Corn starch, cornstarch, cornflour or maize starch is the starch of the corn grain obtained from the endosperm of the corn kernel.-History:...

, and deep-fried

Deep frying

Deep frying is a cooking method in which food is submerged in hot oil or fat. This is normally performed with a deep fryer or chip pan; industrially, a pressure fryer or vacuum fryer may be used....

. It is served either in a small bagful of vinegar

Vinegar

Vinegar is a liquid substance consisting mainly of acetic acid and water, the acetic acid being produced through the fermentation of ethanol by acetic acid bacteria. Commercial vinegar is produced either by fast or slow fermentation processes. Slow methods generally are used with traditional...

, or skewered on bamboo sticks to be dipped in the vinegar just before it is eaten.

Proven is particularly favored among towns in Laguna, and by students of the University of the Philippines Los Baños, where enjoying a taste of the snack in the afternoon has become a popular part of campus culture, similar to the iconic status given to Isaw

Isaw

Isaw is a street food from the Philippines, made from barbecued pig or chicken intestines. The intestines are cleaned, turned inside out, and cleaned again, repeating the process several times. They are then either boiled, then grilled, or immediately grilled on sticks...

 at the University of the Philippines Diliman.

It is also the favorite food of the Grade 9 (Juniors) batch 2011-2012 of the Colegio de Roma.

Nutritional value

A nutritional study conducted by UPLB noted that, as with most street foods, the microbial quality of the proven is a concern. However, the study noted that the pathogenic food-borne microbes in proven are mostly destroyed when it is cooked. The microbes only return if the proven is stored at ambient temperature after having been cooked. The study concluded that the risk of contamination can be reduced simply "through practice of personal hygiene employing standard cooking temperature (171-185 deg C) and time (10-15 min)" and by making sure that the proven is cooked just before it is eaten.

The same study showed that the nutrient content of newly cooked proven was "crude fat(31%), fiber

Fiber

Fiber is a class of materials that are continuous filaments or are in discrete elongated pieces, similar to lengths of thread.They are very important in the biology of both plants and animals, for holding tissues together....

 (131%), carbohydrates (21%), caloric contents (935%), crude protein (26%), calcium

Calcium

Calcium is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft gray alkaline earth metal, and is the fifth-most-abundant element by mass in the Earth's crust...

 (21%), phosphorus

Phosphorus

Phosphorus is the chemical element that has the symbol P and atomic number 15. A multivalent nonmetal of the nitrogen group, phosphorus as a mineral is almost always present in its maximally oxidized state, as inorganic phosphate rocks...

 (4%), iron

Iron

Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...

(44 %), ash (32%) and moisture (56%)."

See also

• Isaw
  Isaw
  Isaw is a street food from the Philippines, made from barbecued pig or chicken intestines. The intestines are cleaned, turned inside out, and cleaned again, repeating the process several times. They are then either boiled, then grilled, or immediately grilled on sticks...
  
  
• Filipino Cuisine
• University of the Philippines Los Baños